1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's...

110
ROYAL OBSERVATORY BULLETINS Number 6o Photoheliographic Results 1958 LONDON: HER MAJESTY'S STATIONERY OFFICE PRICE 145. Od. NET

Transcript of 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's...

Page 1: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

ROYAL OBSERVATORY

BULLETINS

Number 6o

Photoheliographic Results 1958

LONDON: HER MAJESTY'S STATIONERY OFFICE

PRICE 145. Od. NET

Page 2: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

ROYAL OBSERVATORY

BULLETINSJOINT PUBLICATIONS OF THE

ROYAL GREENWICH OBSERVATORY, HERSTMONCEUX

ROYAL OBSERVATORY, CAPE OF GOOD HOPE

Number 6o

Photoheliographic Results 1958

Royal Greenwich Observatory R. v. d. R. WoolleyHerstmonceux Castle Astronomer Royal

Hailsham, Sussex

LONDON: HER MAJESTY'S STATIONERY OFFICE

1962

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P H O T O H E L I O G R A P H I C R E S U L T S 1 9 5 8

INTRODUCTION

The photographs from which these measures were made were taken at the Royal Greenwich

Observatory, the Royal Observatory, Cape of Good Hope, and the Kodaikanal Observatory, Southern

India. Two missing days were kindly supplied by Mount Wilaon Observatory, California.

The photographs of the Sun obtained at Herstmonceux were taken with the 4-inch Photohelio-

graph, of which the original object-glass had been replaced in 1910 by a Grubb photographic

objective. The equivalent focal length of the photoheliograph with its present enlarging

system (supplied in 1926 by Ross, Ltd.) is 67% feet, the diameter of the Sun's image at the

secondary focus being approximately 7% inches. On 1949 May 2 this photoheliograph was movedfrom Greenwich to Herstmonceux Castle, Sussex.

The photographs of the Sun obtained at the Cape Observatory were taken under the superin-

tendence of Her Majesty's Astronomer at the Cape, Dr. R. H. Stoy, and those from Kodaikanal

under the superintendence of the Director, Dr. A. K. Das. At the Cape Observatory the instrument

employed was a 4-inch photoheliograph giving an image of the Sun about 7И inches in diameter;

at Kodaikanal a Cooke photo-visual objective of 6 inches aperture was used, the image of the Sun

which was obtained being of about the same size.

Photographs of the Sun were available for measurement on 365 days in 1958, those finally

selected for measurement being supplied by the different observatories as under:

Herstmonceux 275

Cape 85

Kodaikanal 3

Mount Wilson 2

Total 365

The names of the measurers of the photographs for the year 1958 were as follows:

H. Barton A. S. Mi Is on Miss B. J. Denman

P. S. Laurie •' N. S. C. Rhodes

At the primary focus of the photoheliographs at Herstmonceux and the Cape two spider-wires

are fixed by which the zero of position-angles on the photographs' can be determined. These

wires are inclined at an angle of 45° to the celestial equator. In the Kodaikanal instrument

there is one wire fixed parallel to the equator.

The precise zero of position-angles for the photoheliographs has been determined by three

different methods.

(i) Zero Photographs. Plates were exposed twice, with an interval of about 100 seconds between

the two exposures, the instrument being firmly clamped. Two images of the Sun, overlapping

each other by about a fifth part of the Sun's diameter, were thus produced upon the plates.

The exposures were so made that the line joining the cusps passed approximately through the

centre of the plates and the inclinations of the two spider-wires to this line were measured.

A small correction for the inclination of the Sun's path has been applied. Two or three zero

photographs were usually taken each month at Herstmonceux, the Cape, and Kodaikanal.

(ii) Transits. At Herstmonceux and the Cape, transits of the Sun were taken visually, the

times of contact of the first and second limbs of the Sun with the two wires being noted by an

eye-and-ear method. The ratio of the time taken by the Sun to pass over the NE - SW wire to

the time taken to pass over the SE - NW wire was used in order to find the angle made by the

Sun's path with the bisectors of the wires. From this, again incorporating a correction toallow for the inclination of the Sun's path, the orientation of the wires with respect to the

N - S line could be inferred. Transits were usually taken at Herstmonceux and the Cape on four

or more days during each month.

(iii) Supplementary Zero Photographs. At Herstmonceux supplementary partial images of the Sun

were occasionally recorded on otherwise normal photographs, a second exposure being made after

С 187

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с 188 ROYAL OBSERVATORY BULLETINS [No. 60

clamping the instrument firmly for 130 seconds. The small portion of the Sun's limb visible at

the western edge of the plate could be used, together with the main image which it does not

intersect, to deduce the orientation of the wires in a way similar to that used for the zero

photographs. Six to ten supplementary zero photographs were taken at Herstmonceux each month.

The values for the zero of position-angles deduced from them were given half weight in the

adoption of zero-corrections to be used in the reduction of photographs.

The measures of the photographs were made with a large position-micrometer that can be

used for photographs of the Sun up to 12 inches in diameter. In this micrometer the photograph

is held with its film-side uppermost on three pillars fixed on a circular plate, which can

be turned through a small angle about a pivot in its circumference by means of a screw and

antagonistic spring acting at the opposite extremity of the diameter. The pivot of this plate

is mounted on the circumference of another circular plate which can be turned by a similar

screw-action about a pivot in its circumference. This pivot, 90 distant from that of the

upper plate, is mounted on a third circular plate, with a position-circle graduated in divisions

of 30 minutes of arc, which may be rotated about its centre. By this means small movements in

two directions at right angles to each other can be readily given and the photograph can be

accurately centred with respect to the centre of rotation of the position-circle. When this

has been done, a Ramsden eyepiece, having at its anterior focus a glass diaphragm ruled with

cross-lines into squares with sides of one hundredth of an inch (for measurement of areas), is

moved along a slide adjusted so that the centre of the eyepiece moves diametrically across the

photograph, the diaphragm being nearly in contact with the photographic film, so that parallax

is negligible. The distance of a spot or facula from the centre of the disk is read from a

scale and vernier to l/250th of an inch, corresponding to 0.001 of the Sun's radius for images

8 inches in diameter. The position-angle is read from the large position-circle which rotates

with the photographic plate. The photograph is illuminated by diffused light reflected from

white paper placed at an angle of 45° below the photograph.

In the case of large or complex groups of spots, the chief components were measured

individually; so also in the case of groups near to the east or west limbs of the Sun where the

effects of foreshortening are appreciable. In other cases the position of the centre of a

group was estimated by the measurer at the micrometer.

When required, corrections have been applied to the measured distances and position-angles

to allow for differential refraction. The details of this correction were given in the

Introduction to the Greenwich Photo-Heliographie Results for 1909. It is necessary to apply

this correction to about twenty per cent of the photographs taken at Herstmonceux in the months

October to March.

§1. Positions and Areas of Sunspots for each Day in the Year 1958, page С 191

In this section the measured positions and areas of sunspots are given for each day. Thepositions of sunspots are referred firstly to a system of apparent polar co-ordinates on the

Sun's disk and secondly to a system of Heliographie co-ordinates.

The calculations of heliographic longitude and latitude are made from formulée given byW. de la Rue, B. Stewart and B. Loewy, Phil. Trans., 1869- The system of heliographic co-ordinates may be defined as follows. The inclination of the Sun's axis to the ecliptic isassumed to be 82°45', the longitude of the ascending node of the Sun's equator on the eclipticfor 1958.0 to be 75°10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. Themeridian which passed through the ascending node on 1854 January 1, Greenwich mean noon,is taken as the zero meridian and longitudes increase from east to west. The mean synodicrotation-period is 27.2753 days; synodic rotation periods are counted from 1853 November 9, incontinuation of Carrington's series.

Let г be the measured distance of a spot from the centre of the Sun's apparent disk andX the position-angle of the spot from the Sun's axis, R the measured radius of the Sun on thephotograph, S the tabular semi-diameter of the Sun in arc, and p, p' the angular distances of a

spot from the centre of the apparent disk, as viewed from the Sun's centre and from the Earth

respectively. p - the heliocentric angle - is obtained from the following equations:

p' =-% S and sin (p + p' ) = -jj-

If B0 and ф are the heliographic latitudes and L

0 and X the heliographic longitudes of the

Earth and the spot respectively,

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1962] PHOTOHELIOGRAPHIC RESULTS i958 с 189

sin ф = cos p sin BO + sin p cos B0 cos x

sin (L0 - X) = sin x sin p sec ф

X is found from the position-angle measured eastwards from the north point of the Sun'sdisk by subtracting P, the position-angle of the north end of the Sun's axis also measuredeastwards from the north point. The three quantities P, B0 and L0 for the time of the exposureof each photograph are derived from the Ephemer is for Physical Observations of the Sun, givenon p. 350 of the Nautical Almanac for 1958.

§2. General Catalogue of Groups of Sunspots for 1958, page С 261

This catalogue f i r s t contains particulars of every group of sunspots which lasted for twoor more days during 1958. The group numbers are in continuation of those given in 1957 andprevious years. The table includes an indication of those groups which may be considered to bemembers of 'recurrent series' of groups.

Spot groups seen on one day only are given in a separate table, where they receive adistinctive numeration.

Recurrent groups were selected upon the following plan, reference being made to theGeneral Catalogue:- If any spot when f i r s t seen was 60° or more to the east of the centralmeridian, the catalogue and, if necessary, the Daily Results also (§1), were searched somef i f t e e n to sixteen days earlier to ascertain whether a spot group of similar heliographiclongitude and latitude was then near the west limb of the Sun. Similarly, if any spot groupwhen last seen was 60° or more to the west of the central meridian, a search was made f i f teento sixteen days later. When there appeared to be a case of probable continuity betweengroups in consecutive rotations of the Sun, the character of the groups, their areas and theirlongitude and latitude have been carefully compared before accepting them as a recurrent group.

§3. Total Areas, Mean Areas and Mean Heliographie Latitudes of Sunspots and Faculee- in theYear 1958, page С 285

This section contains total areas of sunspots and faculae (the latter separated in westand east hemispheres) for each day in the year, together with mean areas and mean heliographiclatitudes of sunspots and faculae for each Rotation of the Sun during 1958. Similar annualmean values are also given.

Observations made with the Spectrohelioscopes of Solar Filaments and Solar Flares are nolonger published in this Bulletin. The latter appear in the Quarterly Bulletin on SolarActivity published under the auspices of the International Astronomical Union.

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Blank page retained for pagination

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POSITIONS AND AREAS OF SUNSPOTS

FOR EACH DAY

IN THE YEAR 1958

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С 192 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR 1958

Col. 1. Date and decimal of a day reckoned from midnight. Number of spot group in orderof appearance and in continuation of the group numbers given in Royal ObservatoryBulletin No. 26. Small letters beneath the number of a spot group indicate theprincipal and most stable components of that group. (The areas of such components arealready included in the total area of the group.) Groups seen on one day only aredistinguished by the number of the rotation during which they were observed and by aletter giving the order of their appearance.

In line with the date of each day is given in brackets for the time of photograph, theposition angle of the Sun's axis from the north point and the heliographic longitudeand latitude of the centre of the disk.

Col. 2. Distance of spot group from Sun's centre in terms of the Sun's radius.

Col. 3. Position angle of spot group measured from the north pole of the Sun's axis in thedirection N., E., S., V., N.

Col. 4. Heliographic longitude of the spot group derived from the measures.

Col. 5. Heliographic latitude of the spot group similarly derived.

Col. 6. Area of umbra: corrected for foreshortening and expressed in millionths of the Sun's

visible hemisphere.

Col. 7. Area of whole spots composing the group similarly expressed.

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1962] PHOTOHELIOGRAPHIC RESULTS 1998 С 193

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

GroupNo.

1958

Jan. 1.46818425184131841518417184271842218423184241843118434184281843018432184331843518436184371843818439

Jan. 2.3901841518417184271842218424184311843418428184301843218433184401843518436184371843818439

Jan. 3.464184271842218424

teasures

fed.Dist.

.984

.968

.925

.842

.601

.441

.484

.435

.205

.460

.569

.592

.621

.657

.933

.899

.945

.955

.970

.982

.938

.727

.624

.566

.381

.532

.468

.454

.439

.421

.584

.857

.784

.862

.890

.904

.855

.796

.722

Pbs.Ang.

0

(+2.0)276.0251.5285.8269.5234.0255.9218.1322.8218.6351.844.353.6

115.294.655.184.5

112.277.2

106.2

(+1.6)284.4268.6240.0259.4307.9245.0331.6

27.739.0

125.497.4

126.450.683.0

113.674.6

106.6

(+ 1.0)243.7261.0298.4

Position

Long.

о

(151.3)230.4226.8217.2208. 5183.1177.2170.5167.2158.8155.4126.2121.4115.3110.388.587.880.979.875.3

( 139. 2)217.0208.8182.4177.5167.0

159.8155.3125.8121.8117.2114.5108.688.988.281.178.175.0

(125.0)181.8177.6166.6

Lat.

о

(-3.1)+ 5.3-18.7+13.3- 2.1-23.3-9.0-25.2+17.2-12.2+23.9+21.1+17.8-17.8- 5.3+30.8+ 3.6-22.0+11.2-16.4

(-3.2)+13.5- 2.5-23.6-9.1+17.5-12.2+24.7+21.3+17.5-17.6-6.0-23.0+30.9+ 3.4-21.8+12.1-16.3

(-3.3)-24.0-9.1+Í7.6

Area

Uifa.

022241463361

5766

1533394

15103

10324

3411903660

26

147033

2128

232

12229

954856

«holeSpots

1110225086

471243

9309

263471

269234

28777123

600192

22869

710206305

113667

426143195048

12715

704165

558219299

continued

U.T.and

Groupto.

1958

TOB!

ted.Dist.

sures

Fbs.Ang.

о

rosi

Long.

о

поп

Iflt.

0

Area

Wiole"*• Spots

Jan. 3.464 continued1843418431184281843018432184401843618435184371843818439

Jan. 4.277184271842218424184341843118428184301843218440184361843518438184391844118442

a

Jan. 5.301184271842218424184311842818430184321844018436184351844318438

.684

.560

.416

.359

.286

.414

.599

.775

.732

.775

.781

.932

.899

.825

.787

.678

.448

.379

.265

.338

.408

.706

.641

.657

.970

.980

.970

.985

.976

.925

.817

.555

.495

.376

.359

.236

.599

.529

.486

309.4250.0359.6

7.8153.9142.879.044.0

117.471.2

109.2

(+0.7)245.7261.5293.9303.1254.7337.5339.5190.5166.772.836.867.1

113.7118.6107.8107.5

(+0.2)246.2261.4290.6256.5317.6314.2225.1203.3

58.319.848.458.4

159.9157.7125.2122.1117.4109.489.086.180.776.574.7

(114.3)182.2178.3166.3159.9156.2124.8122.3117.2109.591.484.777.475.338.735.638.2

( 100. 8)181.2178.4165.8155.2124.3122.5117.1109.689.287.276.475.9

+23.0-13.8+21.2+17.5-18.1-22.3+ 3.9+31.2-22.0+12.2-17.0

(-3.4)-23.8-9.1+17.4+23.0-12.8+21.0+17.3-18.4-22.5+ 3.8+31.3+11.7-17.9-28.6-18.1-17.8

(- 3.5)-24.0- 9.2+17.5-13.0+20.9+16.9-18.7-22.6+ 3.7+30.7+17.3+11.5

129

5918382515

116124

47375534

1541122524118723162020

374355

28

345

341782

81

72062

30288

15413368

7865126

504186267

172162

26654

20610077

80013967

262160

697250269

1250

21829

12485429

827continued

Group 18435. Jan. 1 - 7.

Group 18436.Group 18437.Group 18438.

Group 18439.Group 18440.Group 18441.

Group 18442.

Group 18443.

Jan.Jan.Jan.

Jan.Jan.Jan.

Jan.

Jan.

1 -1 .1 -

1 -

2 -4 -

4 -

3 •

9.3.11.

12.8.16.

15.

12.

A single small spot until January 3, when other spots appear,forming a stream.A small spot, with intermittent companions.A small spot, the return of Group 18378.Return of Group 18388. -A scattered stream until January 8; twospots from January 9.A cluster of small spots, of which only one remains from January 8.A cluster of small spots.A single spot on January 4, developing into a small stream of whichonly the leader remains by January 13.A pair of regular spots, of which the follower breaks up anddisappears by January 13.A few variable spots, forming a stream by January 8.

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С 194 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

.т Y measures

andGroup Rad. Fbs.

No. Dist. Ang.

1958 о

Jan. 5.301 continued18439 -474 120.618444 .878 71.618441 .918 119.918442 .910 107.7

a .896 107.618445 -988 100.4

Jan. 6. 280 ( -0. 3)18424 .983 288.518428 .696 305.518430 .647 300.818432 .539 238.318440 .472 225.718436 .136 343.518435 -561 2.818443 .378 20.718438 .333 40.318439 -326 137.718444 .748 67.518441 .814 123.518442 .803 109.1

a .780 108.718445 -932 100.518446 .993 63.9

Jan. 7.471 (-0.9)18428 .844 297.918430 .816 292.518432 .722 246.518440 . 647 239. 718436 .316 295.618435 • 596 345. 118439 • 246 197. 118443 -371 352.418438 .265 350.718447 .594 164.718444 . 557 58. 218441 .679 130.318442 .643 113.6

a .593 113.418445 -786 100.91395; . 815 72. 518446 .941 61.7

Group 18444. Jan. ;Group 18445. Jan. 5

Group 18446 . Jan. 6Group 18447. Jan. 7Group 18448. Jan. 8Group 18449. Jan. 9Group 18450. Jan. 9

Group 18451. Jan. 9Group 18452. Jan. 9Group 18453. Jan. 10

roe:

Lcng.

о

75.641.735.935.637.619.5

(88.0)165.4125.2123.2117.0109.490.286.180.075.474.842.837.335.537.719.27.6

(72.3)125.1123.6116.7109.288.882.676.675.274.860.843.336.134.237.820.719.96.5

- 7.- 17.

- 18.- 12.- 17.- 11.- 17.

- 20.- 21.- 11.

Ltion nrea

Ш. Uib.)*£íe

о

-17. 1 21 70+14. 3 4 22-28.7 23 69-17. 6 56 302-17.3 35 174-10.8 58 484

(-3.7)+17.4 35 277+20.9 7 37+16.3 22 216-19.6 5 12-22.6 25 108+ 3.8 15 74+30. 2 5 26+16.9 3 9+11. С 114 815-17. 5 9 37+14.0 3 27-29.0 16 105-17. 5 46 278-16.9 17 144-11. 1 83 815+25.3 24 118

(- 3.8)+20. 9 2 16+15. 8 13 108-19.4 1 11-22. 1 10 46+ 4.2 4 38+31.3 2 11-17.3 13 56+17. 6 8 29+11.3 94 686-38. 5 17 64+13.7 1 21-29. 1 19 122-17.9 64 279-16.7 31 125-10.9 115 679+11.8 0 5+24.9 35 126

A few small spotA complex group,its disk passageA regular spot,A small stream.A few scatteredA tiny spot, notA cluster of smaafter January 16A regular spot,A regular spot,Two tiny spots о

и.т.and

GroupNo.

1958

Jan. 8.37918428184301844018436184431843918438184471844118442

a1844;1844818446

Jan. 9.44718436184431843918438184471395k18442

a1844118449184451844818446184501845118452

Jan. 10. 28318443184391843818447184531395118442

a

Measures

Rad. RM.Dis t. Ang.

о

.928

.913

.757

.502

.456

.348

.360

.572

.574

.491

.429

.652

.729

.880

.726

.595

.529

.525

.588

.219

.283

.260

.458

.587

.446

.542

.751

.892

.972

.965.

.723

.673

.662

.636

.650

.244

.232.223

(-1.3)294.4289.3241.9283.6320.6224.5316.2177.5138.7120.4121.9103.3110.5

58.0

(-1.9)279.6306.6241.0295.8194.0

54.0142.7148.0157.333.0

107.5116.5

51.259.459.0

112.6

(-2.3)298.2246.5288.9205.3340.5238.5176.9191.9

Position

Long. Lat.

о о

(60.3)124.9123.7106.989.477.875.175.058.534.734.038.120.114.84.7

(46.2)91.976.175.274.756.736.035.938.034.625.520.615.86.4

348.6334.4331.2

(35.2)76.875.774.455.550.347.434.437.7

(-3.9)+20.9+15.8-23.6+ 3.3+16.8-18.1+11.2-38.6-29.0-17.8-16.6-11.6-17.5+25.5

(-4.0)+ 4.1+17.3-18.3+ 9.7-38.6+ 3.4-16.9-16.6-28.8+25.6-11.3-17.4+24.3+24.8+28.8-22.9

(-4.1)+16.9-18.7+ 9.1-38.8+33.7-11.3-17.5-16.7

Area

... Wiole"*• Spots

31113

286

6936473114

1409

36

8166

3626

1442735

1113

1926123121

317

1630

51

3221

178062385632

604143223287125764

61176

3913533

331208

7220149212

8814

8617962

222196

24221

230226

293

197101

continued

A complex group, at first scattered, becoming more compact duringA leading regular spot persists throughout.:h a few variable companions.

>ts.ien on January 10.

A cluster of small spots, developing into a stream which breaks upter January 16.regular spot, with one or two intermittent companions,regular spot, with small companions on January 14 and 17.

anuary 10 ; a single spot on the next day.

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1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 195

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

GroupNo.

1958

Jan. 10. 2831844118445184481844618454184501395m1845118455184521845618457

Jan. 11. 39918439184431843818447184531845818442

a18441184491395n184451844818446184541845018455184511845218456184591845718460

a

Jan. 12. 4041844318439184471845818442

a

№BS

Rad.Dis t.

urea

Pos.Ang.

o

ruai

Long.

0

L1U1

Lat.

о

rire

u*.

u

Spots

continued.425.271.401.654.684.812.789.921.901.903.951.987

.831

.855

.834

.724

.736

.619

.332

.360

.469

.492

.278

.125

.255

.535

.497

.677

.756

.825

.785

.877

.891

.911

.976

.976

.951

.931

.820

.749

.505

.534

177.7118.4127.743.5

116.355.9

105.856.473.8

113.372.894.5

(-2.8)249.8293.3284.3216.8325.7322.3226.2233.6207.6355.1353.1185. 1157.0• 26.4126.246.068.850.7

116.271.497.193.975.575.5

(-3.3)290.0251.1222.8310.4242.0245.8

34.121.215.85.6

354.4347.8343.6334.5333.0331.3325.3314.4

(20.5)75.975.775.354.250.345.234.938.034.823.122.421. 114.5

5.4355.2348.3334.4334.0330.8321.8317.4314.8304.7304.7

(7.3)76.775.853.746.435.037.7

-29.1-11.4-18.1+24.7-20.7+24.3-15.0+28.6+12.7-22.8+15.0- 5.1

(- 4.2)-19.0+17.3+ 9.4-38.8+33.6+25.4-16.7-16.3-28.6+25.0+11.8-11.4-17.8+24.5-20.9+24.4+12.9+28.6-23.0+14.4-8.3- 5.3+13.1+13.1

(-4.3)+17.5-19. 1-39.9+25.7-17.5-16.3

31101

16331328

537

524

330

413121513

231646

24

9016251833

26124

23136

162162

17368

1813

281766

96154

53220

11271

22172

1.3227

1811591

1141110

188108254

1116

60872

13686

19410

302163

7164203680680

941540448853

continued

и.т.and

Group№>.

1958

Jan. 12. 404184411844518448184461845418461184501845118452184961395o184591845718460

Jan. 13. 4771845818442

a18441184451844818446184541846118450184511845218456184591845718460

ab

1396a18462

Jan. 14. 56618442

a18441184451844818446

neust

ted.Dist.

urea

Pos.Arg.

0

Ixng.

0

lat.

о

Uib. Wx>leSpots

continued.575.275.299.483.364.492.564.721.650.724.718.765.791.922.896.969

.862

.709

.709

.729

.503

.444

.523

.303

.425

.498

.618

.491

.563

.604

.619

.803

.768

.888.947.967

.853

.853

.855

.689

.623

.620

223.7241.2219.3

3.3144.832.532.742.3

120.964.0

114.897.893.173.773.373.9

(-3.8)303.8251.2251.2234.7253.4235.8340.7180.7

8.29.6

28.7131.854.699.291.870.269.471.0

113.466.6

(-4.3)253.5253.5239.5257.8246.1320.4

34.021.518.75.6

354.3351.0347.9333.9330.2324.9323.4317.4315.1302.1305.9293.5

(353.2)45.937.437.435.522.615.94.2

353.4349.5348.0333.5329.9324.9316.2315.0302.6305.9293.2282.1281.3

(338.8)37.037.035.322.115.54.4

-28.3-11.8-17.6+24.4-21.4+20.3+24.2+28.6-22.9+15.7-20.5-8.7- 5.1+13.2+12.8+14.4

(-4.4)+26.0-16.3-16.3-28.2-12.1-18.5+25.1-22.0

+20.4+24.9+28.6-23.1+15.1-9.0-4.5+12.9+12.8+14.6-23.5+21.2

(-4.5)-16.4-16.4-28.2-11.7-18.2+24.4

34133

2231313314027

51

5340

210148

52

688

33110

1145

520284830125762

222164580

12

44

211232031

194766

121358277

308291166

215

323204

1230756436

284545

188740

73174

2912833723114867

392213

1474895579

325

2323

1821066

145163

continued

Group 18454. Jan. 10 - 19.

GroupGroupGroup

Group

GroupGroup

GroupGroup

18455.18456.18457.

18458.

18459.18460.

18461.18462.

Jan.Jan.Jan.

Jan.

Jan.Jan.

Jan.Jan.

101010

11

1111

1213

- 11.- 17.- 20.

- 13.

- 21.- 23.

- 17.- 18.

A small stream, of which the leader becomes a regular spot onJanuary 16. The rear component has died out by January 19.A small spot.A few variable spots.Return of Group 18419. A stable spot until January 16, after whichit begins to die out.A single small spot on-January 11 and 12; a single spot onJanuary 13.A stream, led by a regular spot.A large bi-polar group, of which the rear component dies out as itapproaches the limb.A long stream for two days, contracting into a composite spot.A small spot.

Page 12: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 196 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

y Y Measures

andGroup Rad. Pos.

No. Dist. Aig.

1958 o

Position Area у т

and

т т t Ihh Wx>le Qraip

о о 1958

Jan. 14. 566 continued184541845018461184511396b184521845618459184571846318460

.

.

a .Ь

184621846418465

.

Jan. 15. 28718442 .

a1844118445184481844618454184501846118451184521845618459184571846318460

.

.

.

.

.

371 209.518 342.441 341.555 9.231 151.353 154.404 33.381 104.401 90.566 50.650 64.602 63.759 66.896 62.987 68.975 105.

(-4.933 254.933 254.923 241.795 257.735 249.705 311.454 224.576 328.516 326.548 354.325 179.342 13.205 111.242 90.

2261371188323400

6)00080240272464

.463 44.4

.aЬ

184621846518464

Jan. 16. 28318441184451844818446

GroupGroupGroupGroupGroupGroup

18463.18464.18465.18466.18467.18468.

534 57.477 55.645 61.816 58.927 104.956 66.

(-5.980 241.911 258.858 250.822 303.

Jan.Jan.Jan.Jan.Jan.Jan.

630865

D83б5

141414161616

350.1348.8347.3333.1332.2329.4325.6316.9315.2311.6302.0305.6293.1280.0261.4261.2

(329.3)38.438.435.721.815.54.6

349.4348.9347.5332.6329.0324.6318.3315.3309.8301.9305.8293.8280.7261.2259.7

(316.2)35.422.014.84.5

- 16.- 26.- 17.- 18.- 18.- 27.

Jan. 16. 283-23.3 12 67 18466+25.0 51 400 18454+20.2 22 171 18450+28.6 31 230 18461-16.1 4 21 18451-23.0 29 201 18452+15.3 3 46 18456-9.5 70 475 18459- 4. 5 40 197 18457+16.9 2 23 18463+12.7 283 1476 18467+11.9 201 897 18460+14.6 82 579 a+22.2 4 50 Ь+20.8 67 406 . 18462-15.6 9 53 18465

1846418468

(-4.6) 18469-16.6 3 14 18470-16.6 3 14-28. 4 19 146-12.5 94 786 Jan. 17. 282-18.5 9 62 18445+23.8 26 117 18448-23.2 15 69 18466+24.8 23 140 18446+20.9 27 212 18454+28.4 26 188 18450-23.5 25 173 18461+14.8 1 7 18451- 8.9 43 292 18452- 4.6 28 154 18456+14.9 9 46 18459+12.5 194 1187 18457+11.5 130 800 18467+14.5 64 387 18460+21.9 5 22 a-15.2 3 3l Ь+20.9 32 323 18462

1846518464

(-4.7) 18468-28.6 15 212 18469-12.6 90 861 18470-19.0 13 80 18471+23.8 33 157 18472

continued

A few small variable spots.A stable regular spot.A small spot.A single spot on January 16 andA stream of small faint spots.Return of Group 18408. One or

Kfeasures

Rad. Pos.Dist. Ang.

о

Position

Long. Lat.

о о

Area

... Whole"*• Spots

continued.746.641.693.639.591.381.359.081.013.336.220.388.325.497.688.832.874.968.961.960

.983

.965

.895

.914

.778

.798

.774

.682

.514

.487

.288

.219

.134

.290

.271

.368

.557

.693

.767

.884

.873

.886

.949

.972

255.4240.1314.5311.3336.3211.9334.4207.365.122.7

124.240.733.548.750.7

105.863.163.383.9

106.3

(-5.6)258.3251.6257.0298.4245.0307.2302.0322.4230.6311.2255.1269.8200.2

3.6350.024.738.4

108.657.659.482.0

107.763.860.1

4.1353.0349.2347.0331.8328.8325.4318.3315.5308.6305.5301.2305.7293.6281.3260.2260.0244.8243.0242.1

(303.1)23.118.36.74.1

352.6347.7347.5331.2328.6325.2319.4315.7305.8302.0305.8294.0281.4260.1259.4246.8244.1240.9235.7231.5

-14.0-22.3+25.1+20.9+28.1-23.4+14.1- 8.8-4.4+13.4-11.7+12.5+11.0+14.8+21.9-15.7+20.7+24.3+ 4.5-16.9

(-4.8)-12.4-19.0-13.8+23.5-22.3+25.4+20.8+28.4-23.3+14.2- 8.8- 4.8-12.0+11.9+10.6+14.7+21.3-16.3+20.7+24.1+ 4.6-17.9+23.0+27.5

247263224227

4725

19

1021719231418815732

324113

750

245 13121826362

47407

1200

261842

51126195

43156

20414460

43

671142

2245

844468

2815

38633

733

67211

118122285

3360

19212224

2446757

1146847299

1710

277651916

162220

continued

18 ; two spots on January

two spots ondeveloping into a scattered stream which is

GroupGroupGroup

18469.18470.18471.

Jan.Jan.Jan.

161617

- 20.- 19.- 24.

approaches the limb.A small spot until January 19; a pairOne or two tiny spots.

17.

the f i r s t four days,dying out as it

on January 20.

A short stream, of which the rear component18472 by January 19. The remainder,

coalesces with Groupconsisting of

with one or two companions, disintegrates and diesGroup 18472. Jan. 17 • 28. A regular spot, with occasional

a regular spotout.

companions .

Page 13: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 197

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

IT f Measures Fbsiticn Area 11 * Measures Position Area

andGroup Rad. R». -^

No. Dist. Ang. ^ '̂

1958 о о

Jan. 17. 282 continued18473 .950 101.3 231.018474 .982 68.0 226.918475 .981 109.6 223.3

Jan. 18. 383 (-6.1) (288.6)18466 .982 256.8 8.418446 .981 295.5 3.818454 .916 249.2 354.81396c . 843 258. 5 346. 11396d .818 251.6 343.018451 .790 312.3 330.118452 .681 240.8 328.718459 .530 262.9 320.518457 .455 270.2 315.618467 .313 244.8 305.418460 .380 317.9 303.6

a .396 312.2 305.9Ь .349 343.2 294.6

18462 .463 15.4 281.018476 .508 42.6 267.618464 .632 46.9 259.01396e .715 51.7 251.418477 .812 45.0 246.518468 .786 53.5 244.918469 .723 78.8 243.418470 .752 109.3 240.618471 .850 59.3 236.418473 .839 101.5 231.518472 .908 56.1 230.318474 .909 65.0 227.418475 .909 109.9 223.318478 .973 59.4 216.9

Jan.. 19. 284 (-6.5) (276.7)18454 .979 250.0 355.718451 .881 306.2 330.418452 .801 244.3 328.418459 .696 264.3 320.818457 .629 268.3 315.718460 .520 301.5 303.5

a .547 298.1 306.0Ь .441 316.9 294.7

18476 .429 25.3 265.618464 .526 33.3 258.718477 .741 36.9 245.2

Group 18473. Jan. 17 - 25.

Group 18474. Jan. 17 - 24.Group 18475. Jan. 17 - 28.Group 18476. Jan. 18 - 23.Group 18477. Jan, 18 - 24.

Group 18478. Jan. 18 - 29.

Group 18479. Jan. 20 - 26.Group 18480. Jan. 20 - 24.

Group 18481. Jan. 20 - 31.

Group 18482. Jan. 20 -Feb. 1.

and

bit. Uib. |"Jj Group ** J»' Lmg. I*t. Uib. fejj

о 1958 o o o

Jan. 19. 284 continued-12.2 6 36 18468 .682 45.7 244.5 +24.1 4 34+20. 5 16 98 18469 .566 74. 5 243. 7 + 4. 5 2 16-20.2 25 179 18470 .581 112.5 242.7 -17.0 2 13

18471 .727 52.5 238.3 +22.3 26 16518473 .721 102.4 230.8 -12.4 4 42

(-4.9) 18472 .827 51.7 229.9 +27.4 55 250-13.9 18 153 18474 .813 60.9 227.8 +20.0 11 85+23.8 18 149 18475 .816 111.1 222.8 -20.1 22 114-21.0 38 184 18478 .925 56.1 215.8 +28.7 38 294-12.3 2 22-17. 8 0 19+28.4 19 156 Jan.20.569 (-7.1) ( 259. 8) ( - 5. 1)-23.1 25 116 18451 .969 301.3 330.2 +28.6 12 107-7.9 34 219 18452 .930 247.3 328.3 -23.0 15 78-4.2 8 60 18459 .876 264.8 321.0 -7.0 15 163-12.3 3 27 18457 .832 267.5 316.1 -4.9 4 17+11.6 208 1071 1396 f .785 298.9 306.2 +18.8 0 3+10.7 177 879 18460 .733 290.7 304.0 +11.3 233 1141+14.5 31 192 a .754 289.1 306.1 +10.7 217 1033+21.5 02 Ь .651 298.3 295.8 +13.8 16 108+17.3 2 14 18479 .369 205.5 269.8 -24.4 18 75+21.3 81 218 18464 .453 3.1 258.3 +21.7 59 282+22.3 0 3 18480 .678 4.9 255.6 +37.2 12 49+31.4 3 20 18477 .630 18.4 246.3 +31.6 13 83+24.3 9 25 18468. .535 25.9 245.1 +23.7 8 70+ 4.6 5 9 18469 .368 57.7 241.6 +6.4 1 10-17.7 5 16 18471 .570 37.9 237.7 +21.9 37 172+22.7 32 179 18473 .505 105.9 230.1 -12.4 25 83-12.3 4 12 18472 .686 40.3 230.0 +27.0 40 267+27.9 29 178 18474 .639 50.3 228.5 +19.6 8 35+20.2 13 68 18475 .630 115.9 222.9 -20.0 7 87-20.1 15 73 18478 .826 49.9 213.9 +28.6 45 281+28.2 32 298 18481 .941 105.9 189.2 -16.6 0 9

18482 .978 97.5 181.5 -8.4 21 82

(- 5.0)-20.5 36 437 Jan 21. 508 (-7.5) ( 247. 4) ( - 5. 2)+28.4 20 141 18452 .982 247.5 327.6 -23.1 5 28-23.4 35 139 18459 .959 264.5 321.1 -6.7 19 132-7.6 17 209 18460 .863 286.3 304.8 +11.2 215 955-5.0 В 43 a .877 285.7 306.5 +11.1 203 890+11.2 218 1113 Ь .789 292.3 296.0 +13.9 12 65+10.5 202 967 18479 .478 224.7 269.0 -24.6 31 196+13.9 16 146 18464 .483 339.9 257.7 +21.8 63 280+17.8 2 23 18480 .674 351.6 254.4 +36.5 5 21+21.2 59 327 18477 .588 359.7 247.6 +30.7 21 145+31.9 21 119 18468 .483 3.3 245.7 +23.5 10 1.19

continued continued

Intermittent. A small spot, developing into a short-lived stream,of which only one spot remains by January 23.A small regular spot, which splits into two parts on January 21.A small persistent spot.Intermittent. One or two tiny spots.Two small spots on January 18, developing into a short stream ofwhich only the leader remains on January 24.A stable regular spot, decreasing in area as it crosses the disk.There are a few companions on January 20.A stream, developing west of the central meridian.A pair of widely-separated spots, of which only the leader remainson January 24.A small spot on January 20, developing into a stream. The leader,a composite spot, splits into two on January 26 and the wholegroup is dying out as it passes round the limb.Return of Group 18422. A stable regular group.

Page 14: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 198 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

GroupNo.

1958

Jan.21. 508184711847318472184741847518478184811848318482

Jan.22.40118460

ab

1396g1847918476184641848018477184841846818471184721847318474184751396h1847818481184831848218485

Jan.23.41218460

ab

184791847618480184641396 i184771848418468184711847318472

Group 18483Group 18484Group 18485Group 18486Group 18487

Group 18488Group 18489

measures

Red. Pos.Dist. A«.

0

continued.482 19.7.327 112.5.602 27.7. 520 37. 2.478 123.8.737 42.9.840 106.3.899 109.3.912 96.9

(^7.9).943 283.5.952 283.2.890 288.7.829 291.4.604 233.8.616 309.1.566 322.4.728 338.3.611 343.5.239 234.6.493 342.5.450 356.4. 559 10. 7. 166 134. 3.435 16.4.339 139.9.336 99.9.651 32.1.724 107.3.798 110.7.805 96.4.966 69.3

(-8.4).993 282.2.996 281.7.969 285.8.751 240.9.754 300.0.819 326.7.690 309.9. 593 236. 1.696 326.3.420 250.7. 575 323. 8.514 332.8.155 231.3.557 350.2

. Jan. 21

. Jan. 22

ï-«

Long.

о

237.229.229.228.222.212.190.183.181.

(235.304.306.295.288.268.265.257.255.247.247.244.237.229.228.228.222.216.212.189.183.182.163.

(222.304.305.295.268.265.257.257.254.248.246.243.237.229.228.

- 27.- 23.

451058444

7)4183284432940833269507

4)19976508939045

uticn Area

**• "*•!££о

+21.8 22 110-12. 1 13 54+27. 1 20 183+19.4 6 23-20. 1 10 65+28.4 55 250-16.4 8 50-19.6 2 15- 8. 5 27 133

(- 5.3)+10.8 148 876+10. 8 140 836+14.0 8 40+14.4 8 15-25.3 60 394+18. 2 3 8+21.7 71 265+37.4 4 17+30. 5 13 86-13. 1 1 5+22.7 23 224+21.2 20 76+27.9 30 130-11.9 6 16+19. 3 12 34-20. 1 9 52- 8. 3 5 13+28.5 45 219-16. 1 22 142-19.6 3 11-8.3 28 102+18.4 25 190

(- 5.4)+11.4 142 647+11.1 138 617+13.8 4 30-25. 1 64 430+18.2 0 3+38. 8 2 10+21.8 51 273-23.8 1 6+30. 5 6 29-12.9 4 15+22.5 13 118+21.8 12 50-10.9 2 7+27.8 26 126

continued

A few small spots.

U.T.and

GroupNo.

1958

Jan.23. 4121847418475184781848118483184821848618485

Jan.24.393184791848018464184771846818471184741847218475184781848118483184821848618485

Jan.25.41918479184641846818473184721847518478184811848318487184821848618485 '1848818489

Jan.26.26118479184641846818472

NEB!

Rad.tust.

sures

Pos.Arg.

о

roe

Long.

о

iticn

Lat.

о

АТС

Uib.

a

flholeSpots

continued.422.255.581.553.616.647.837.889

.861

.893

.808

.808

.697

.634

.526

.620

.320

.562

.363

.443

.461

.705

.780

.954

.910

.834

.571

.709

.475

.613

.208

.318

.314

.246

.550

.645

.582

.921

.987

.966

.933

.793

348.7178.614.9

111.1116.196.7

119.966.1

(-8.8)244.4319.5302.6315.0312.1315.8323.0332.9218.5355.7121.6126.597.9

123.861.2

(-9.3)245.7297.4303.2255.1318.8238.5336.9154.6150.6141.9102.3134.953.099.964.1

(-9.6)245.8294.6298.0311.5

227.4222.0212.6190.1186.5182.1167.5163.7

(209.4)267.9257.6256.5250.9243.5237.8229.0228.0221.6212.1190.7187.2182.0168.4163.5

(195.9)268.9256.4245.3230.2227.5221.2211.8190.6186.3184.1181.9169.9163. 2160.4133.4

( 184. 8)266.8255.9248.6226.7

+19.0-20.1+28.7-16.0-20.1- 8.5-27.8+18.4

(- 5.4)-24.7+39.1+22.1+30.7+23.3+22.2+19.7+28.3-19.7+28.6-16.1-20.2- 8.5-27.1+18.3

(-5.5)-24.8+22.1+23.6-13.0+27.5-19.3+28.9-16.3-21.5-19.6-8.3-27.7+18.2-10.2+21.2

(-5.6)-24.7+22.0+23.5+27.5

4102333

125

430

920

563

2061

316

2542

426

126

5975131

152

1840

224193

2316

5

39591414

2045

182213

11118

17157

7068

28524

1143l6

17520

135259

20101

9175

677276

599

9713

121272

131779928

13810732

58228512388

continued

Оле or two tiny spots.. Jan. 22 -Feb. 1.. Jan. 23 - 27.. Jan. 25 -Feb. 1.

. Jan.25-Feb.2.

. Jan. 25 -Feb. 4.

A regular spot, with occasional companions.A few small spots.A small compositebecomes regular in

spot, appearing suddenly on January 25,outline by January 29.

A compact stream, which soon begins toA stream, becoming widely separated in

break up.longitude.

which

Only thefollower remains on February 3 and 4.

Page 15: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 199

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.arei

Group№.

1958

Jan. 26. 261184751847818481184831848718482184861848518488184891849018491

Jan. 27. 2831846818472184751847818481184831848718482184861848518488184891849018491

Jan. 28. 438184721396}18475184781848118487184821848518488184891849018491

Jan.29. 2821847818481

Measures

Red. Re.ttst. Arg.

о

continued.615 245.8.682 325.1.216 208.2. 276 186. 7.244 174.6.074 134.6.447 148.0.531 42.4. 430 102. 5.843 60.4. 970 69. 1.991 115.4

(-10.1).988 295.2.887 305.0. 773 250. 1.782 314.7.369 236.3. 378 218. 7.304 218.9. 187 253. 8. 383 172. 9.431 20.9.224 112.7.723 52.9.895 65.9.958 116.5

(-10.6).963 300.4.913 257.3.907 251.9. 887 307. 0.582 249.0.485 240.8. 434 262. 2.415 346.0.086 209.4. 594 39. 2.777 59.6.871 118.0

(-10.9). 946 303. 3.709 251.5

Position

Long.

0

221.1211.2190.9186.8183.4181.8169.4162.8159.6133.2112.0100.8

(171.4)248.5226.1221.4210.7190.1186.2183.0181.8168.3162.1159.3133.3112.197.4

( 156. 2)224.9222.5221.6210.0190.6182.7181.9162.2158.6132.4111.296.7

( 145. 1)209.5189.6

Let.

0

-19.1+28.9-16.5-21.5-19.6- 8.5-27.6+17.8-10.4+21.1+18.7-25.9

(- 5.7)+23.7+27.3-18.9+28.9-17.2-22.6-19.2-8.6-28.0+18.0-10.5+21.3+18.5-27.0

(- 5.8)+27.1-13.9-18.8+28.9-16.8-18.8- 8.6+17.9-10.1+22.0+19.0-27.1

(- 5.8)+28.9-17.2

Area

Uifa.

41645

540165

255066307

742

14531

3694

2396874021

400

112924141485543616

624

«holeSpots

894

24321

2076523

138298307275

47

65201074

28711

178553198

53041117297

1555

82224193

5474

588275206

87

26146

U.T.and

Group№.

1958

Jan. 29. 28218487184821396k184851848818492184891849018491

Jan. 30. 3861848118487184821848518488184921848918493184901849418491

Jan.31. 28618481184871848218485184881849218489184931849018494184911849518496

Feb. 1.5041848218487184851848818497184981849218489

Measures

Rad. R».DLst. Aig.

0

continued.625 246.5. 598 263. 1. 406 249. 1.482 326.1.247 249.7. 522 346. 1. 498 22. 6.669 52.6.788 119.9

(-11.4).840 253.1.785 250.6.775 263.7.623 308.9.466 259.2.608 326.1. 472 357. 4.460 40.4. 534 37. 2.367 88.8.650 125.6

(-11.8).929 252.0.892 251.6.891 263.4.742 300.6.633 261.0.701 314.8. 507 337. 6.376 16.7. 452 16. 7.171 85.4. 542 135. 8.975 61.8. 984 104. 0

(-12.3).980 262.7.975 251.5.882 294.1.826 261.9.797 257.9.802 236.6. 841 304. 3.624 316.7

Position

Long.

0

182.3181.9168.0161.4158.7153.0133.3111.095.3

( 130. 5)187.6181.7181.5161.0158.1152.3132.5112.6110.6109.094.3

(118.7)187.5182.0182.0160.6158.0151.7130.7112.3110.8108.993.446.438.0

(102.6)181.6180.8160.2158.5155.6153.1152.1129.8

Lat.

о

-19.0-8.7-13.6+17.9-10.5+24.6+21.6+19.1-26.9

(- 5.9)-17.3-18.8-8.6+17.9-10.2+24.7+22.1+14.8+19.5- 5.0-26.9

(-6.0)-18.9-19.1-8.6+17.7-10.3+24.5+22.0+15.1+19.6- 5.1-28.2+25.7-14.8

(-6.1)- 8.4-19.3+17.9-10.1-13.3-30.1+24.3+21.5

continued

Area

U*.

2713

214522

573722

41476

531245

2300

12

U-1694

651058

541189

3311

1015

425670

29

Spots

122531549

52515

28917893

12784726

38268

22513

1696

66

8l865016

27339

24123

1728353

199110

377714

14114184

133continued

Group 18490. Jan.26-Feb.6.

Group 18491.Group 18492.

Group 18493.Group 18494.Group 18495.

Jan. 26 -Feb. 1.Jan. 29 -Feb. 1.Jan. 30 -Feb. 2.

Jan. 30 -Feb. 5.Jan. 31 -Feb. 7.

Group 18496. Jan.31-Feb.11.

Group 18497.Group 18498.

Feb.Feb.

l - 2.l - 3.

An elongated spot. On February 5, other spots appear, forming a

short stream.A short stream, of which only the follower remains after January 30.

A few small spots.A few variable spots.A stream, rising to a brief maximum on February 2.A regular spot, which breaks up and dies out just past the central

meridian.A stream, developing into a bi-polar group, which begins to breakup on February 8.A small spot.A few small spots.

Page 16: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 200 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U. x Measures

ecuGroup Rad. Fbs.to. Dist. Arg.

1958 о

Feb. 1.504 continued18493 .413 327.818490 . 455 343. 018494 . 123 274. 213961 . 220 336. 518491 .409 156.418495 . 896 57. 3

.18496 .889 102.518499 .947 100.318500 .998 104.1

Feb. 2.398 (-12.6)18488 .926 261.61396a .910 253.918497 .900 257.718498 . 892 239. 018489 .725 307.918493 .532 ЗЮ.918490 .540 323.018494 . 325 269. 018501 .540 61.518495 .804 51.618496 .767 102.118499 .857 99.618500 .968 103.018502 .995 107.0

Feb. 3.583 (-13.1)18498 .966 239.918489 .848 301.518490 .694 307.518494 .577 267.01396n .319 344.21396o .260 156.818501 .347 34.31396p .312 41.818495 .678 40.318496 .547 104.918499 .688 100.518500 .868 102.718502 .955 107.7

Feb. 4.344 (-13.4)18489 .919 298.0

Group 18499. Feb. 1Group 18500. Feb. 1Group 18501. Feb. 2

Group 18502. Feb. 2

Group 18503. Feb. 4Group 18504. Feb. 4Group 18505. Feb. 4

Group 18506. Feb. 5Group 18507. Feb. 5Group 18508. Feb. 6Group 18509 . Feb. 6

Fbsition Area U>T> Measures Fbsition Area

andт т il*, flhole Group Rad. Fbs. ¥ ...

Spots to. Dist. Ang. la^ *•

o o 19J8 o o o

Feb. 4.344 continued115.7 +14.4 5 16 18490 .789 301.4 110.8 +19.8 23110.7 +19.6 26 141 18494 .708 266.8 110.5 - 6.7 22109.6 -5.5 50 205 18501 .291 2.8 64.5 +10.5 25107.6 + 5 . 5 1 4 18495 .604 29.2 46.3 +25.7 1492 .0 -27 .9 4 13 18496 .406 109.2 42.2 -13.4 12246.0 +25.6 19 102 18499 .550 101.8 32.1 -Ц.7 1739.4 -13.9 36 226 18500 .767 103.0 15.1 -14.0 14130.8 -11.7 43 120 18503 .829 62.4 14.7 +18.6 715.0 -14.4 0 191 18502 .896 107.4 1.3 ~18.4 128

18504 .947 104.4 353.3 -15.7 318505 .987 64.4 348.6 +24.0 0

(90.9) (-6.1)159.1 -10.1 18 68156.8 -17.1 7 38155.5 -13.7 9 22 Feb. 5. 581 (-13.9) (49.0) (-6.3)153.0 -30.3 13 56 18506 .951 304.5 113.8 +30.1 35128.7 +21.6 25 89 18490 .917 295.5 110.8 +20.4 11115.4 +14.8 4 16 18494 .876 264.9 110.4 -7.5 12IILO +19.7 36 158 18501 .406 313.0 66.5 +10.0 13109.9 -6.1 43 292 1396ч .451 346.1 55.6 +19.6 162.3 +9.5 И 61 1396т .309 7.7 46.6 +11.5 346.7 +25.6 16 85 18495 .542 5.7 45.6 +26.2 940.7 -13.1 100 571 18496 .156 135.7 42.6 -12.6 12831.6 -11.4 22 105 18499 .301 109.4 32.2 -11.8 514.7 -14.1 135 584 18500 .561 105.8 15.3 -14.0 136

5.3 -17.5 19 120 18503 .671 52.3 15.0 +18.9 3918507 .561 95.9 14.8 -8.5 818502 .752 109.1 0.7 -18.5 170

(75.3) (-6. 2) 18504 .871 104.2 348.1 -15.4 7151.2 -30.6 8 32 18505 .923 59.1 348.0 +25.3 36126.6 +22.4 19 115IILO +19.9 28 157110.6 -6.8 28 198 Feb. 6.295 (-14.2) (39. 6) (-6. 4)80.4 +1L7 2 15 18506 .985 302.0 113.9 +29.9 5869.1 -19.9 5 11 18490 .966 293.7 110.6 +20.9 063.9 +10.5 17 76 18508 .699 290.3 81.0 +9.2 163.3 +7.3 2 12 18501 .523 ,299.6 66.9 +9.3 646.3 +25.6 19 75 18495 .542 350.6 45.2 +25.8 542.5 -13.3 92 586 18496 .134 204.1 42.8 -13.4 923L8 -11.7 30 99 18499 .161 127.1 32.1 -11.9 214.7 -14.1 117 473 18500 .425 110.3 15.4 -14.3 1211.8 -18.7 83 607 18503 .575 43.4 15.0 +18.8 31

18507 .452 96.5 12.7 -8.7 618502 .650 111.8 0.1 -18.9 145

(65.3) (-6.3) 18509 .793 52.4 356.2 +24.3 2126.6 +22.6 13 63 18505 .860 55.4 348.2 +25.3 16

continued 18504 .785 105. 4 347.9 -15.9 2

- 8. A small spot, dying out just past the central meridian.- 14. A large regular spot, with occasional companions.

Ято!Spot

1281199357

80870

66743

7381224

187413851

51933

78921

73816231

75839

164

36811104221

67217

59314734

10288

10126

- 8. A short stream of variable spots, of which only the leader remainson February 7 and 8.

- 15. A large elongated stream, of which the very variable middlecomponents die out before reaching the limb.

- 11. A short stream, of which only the leader remains after February- 14. A cluster of small variable spots, not seen on February 7.

9.

- 15. A group of variable spots. There is a resurgence of activity onFebruary 10, when a regular spot appears; this is the solesurvivor at the limb.

- 6. A stream, appearing at the west limb.- 11. A cluster of variable spots.- 7. A pair of tiny spots.- 9. Intermittent. One or two tiny spots.

Page 17: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 201

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

GroupNo.

1958

Feb. 7.29618508185011849518496184991396a18500185031850718502185051396t1396u1851018511

Ь

Feb. 8.292185121850118496184991850318500185071850218504185051851018511

b

Feb. 9.501185121397a1849618503

• 185001850718502185091850418505185131851018511

Ь

Group 18510

Group 18511

Group 18512Group 18513Group 18514Group 18515Group 18516Group 18517Group 18518

Measures

fed. Pos.Dist. Arg,

о

(-14.5).850 285.5.716 291.1.596 330.5.314 248.0. 137 226. 3. 140 166. 1.237 126.6. 469 24. 7. 237 99. 5.484 118.1. 749 46. 9.754 58.0.859 103.1. 982 68. 9.989 76.5. 989 76. 5

(-14.9).882 253.7.852 286.3. 515 256. 1. 329 246. 7.423 353.3. 144 193. 5.056 175.3. 333 134. 2.453 112.9.645 39.6.921 65.7.934 74.3.934 74.3

(-15.4).982 254.0.929 279.6. 757 258. 4.521 323.0.335 244.4. 277 257. 3. 234 180. 8.488 4.0. 208 139. 7. 554 17. 4. 732 66. 2. 806 59. 8.814 70.1.814 70.1

. Feb. 7

. Feb. 7

Fbsi

Long.

о

(26.4)82.469.045.243.732.224415.114.512.8

359.7349.2344.1326.8310.6306.9306.9

( 13. 3)75.669.344.031.316.315.313.0

358.7347.7346.7310.7306.7306.7

( 357. 4)77.764.446.816.615.513.2

357.6355. 3349.4346.9314.3309.9306.1306.1

- 14.

- 19.

Ltion Area UT

and

Let. Uib. 3JU*>fe C!rouPSpots No.

о 1958

(-6.4) Feb. 10. 398+ 9.6 2 12 18496+10.2 4 16 18503+25. 1 1 5 18500-12.8 119 630 18507-11.8 1 5 18502-14. 1 3 14 18505-14.4 134 751 18504+18.8 25 122 1397b-8.5 6 39 18513-18.9 191 1068 18510+25.7 12 59 18511+18.8 2 8 b-14.5 2 13 18514+19. 2 21 93+12.2 151 620+12.2 151 620 Feb.ll. 507

1849618503

(-6.5) 18500-17.4 8 24 18507+10.2 4 20 18502-12.7 81 633 18504-13.7 1 3 18505+18.2 25 102 18515-14.5 139 597 18510-9.7 4 26 18511-19.7 156 1102 Ь-16.0 3 10 18514+23.9 5 23 18516+19. 3 29 173+12.1 137 617+12.1 137 617 Feb. 12. 688

1850018502

(-6.6) 18505-16.9 5 23 18504+ 6.4 6 45 18515-13. 1 ЮЗ 690 18510+18.3 14 63 18511-14.5 161 756 Ь-9.8 4 22 18514-20.1 135 999 18517+22.5 1 6 18516-15.6 3 31 18518+25. 3 6 33+12. 3 1 9+19.5 9 53 Feb. 13. 292+11.9 125 611 18500+11.9 125 611

Мм

fed.Dist.

.881

.672

.510

.468

.304

.526

.160

.390

.592

.694

.691

.691

.982

.967

.823

.708

.681

.489

.330

.602

.295

.537

.493

.515

.921

.994

.872

.698

.728

.557

.306

.442

.332.350.792.909.947.971

.928

sures

Pos.Ang.

о

(-15.7)259.1308.1252.6261.2218.1356.1192.6

7.458.553.065.065.0

113.7

(-16.1)258.5299.1256.5262.5239.9241.0333.5

24.438.152.554.3

113.965.8

( -16. 5)256.9247.4315.7251.4330.4

10.223.427.9

115.670.062.481.8

(-16.7)257.3

Posi

Long.

о

(345.5)47.719.415.513.4

357.0347.8347.6342.5314.5309.7305.9305.9264.9

(330.9)46.920.316.014.0

357.6348.3348.2323.8310.5307.5305. В263.3250.9

(315.4)16.6

358.7349.7348.5324.2310.7307.7305.8264.0253.4249.5240.4

(307.4)16.2

tion

Lat.

0

(-6.6)-12.7+19.0-14.5-10.0-20.3+24.9-15.5+16.1+12.3+19.3+11.9+11.9-24.5

(-6.7)-12.8+19.2-14.3-10.0-20.2-15.5+26.1+ 8.9+18.6+11.2+11.4-24.6+23.0

(-6.7)-14.7-20.5+25.9-15.8+ 8.7+19.0+11.0+11.4-24.3+15.0+23.4+ 6.3

( - 6. 8)-14.3

Area

Utb Ию1е

' Spots

935

1374

13522

521

12114114

10

344

1176

1095

2220

2192140

931

13989298

234

63320

73637

8451082186

50536536

57

21918

65841

62346

1018618

939648

38246

61948618966

16816

266 1441182

68

3418

122

8882530

189119

589continued

A cluster of small spots, of which only oneFebruary 1 1 .A regular spot for the f i r s t few days

remains after

; it becomes composite instructure after February 11, when additional

. Feb. 8

. Feb. 9

. Feb. 10

. Feb. 11

. Feb. 11

. Feb. 12

. Feb. 12

- 9.- 10.- 13.- 17.- 23.- 16.- 23.

to form a stream of normal type.A small spot.A tiny spot.One or two small spots.A stream of small spots.A regular spot.One or two small spots, not seen on FebruaryA regular spot, leading a short stream untilspots appear on February 19 , theout as it approaches the limb.

whole group

spots

15.

appear

February 17.breaking up

in front

Otherand dying

Page 18: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 202 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

GroupNo.

1958

Msasures

Rad. RJS.E&st. Ang.

0

RJS:

о

Feb. 13. 292 continued185021850518504185151851018511

b18514185171851618518

Feb. 14. 49518500185021850518504185151851018511

Ь185191851718516185181852018521

Feb. 15. 29 518502185051851518511

b1851918516185181852118520

Feb. 16. 6111851518511

Ь

Group 18519Group 18520Group 18521Group 18522

Group 18523

Group 18524Group 18525

Group 18526

Group 18527

.816 252.0

.816 308.3

.699 253.9

.391 312.3

.439 353.1

. 309 359. 7

.309 5.1

.719 118.1

.841 67.7

.897 60.0

.932 81.1

(-17.1).994 256.7.929 252.3.925 301.3. 865 255. 7.617 294.4. 536 324. 5.414 316.9.391 320.9. 430 39. 3.690 59.7.775 52.7. 800 77. 5.991 67.9.984 103.1

(-17.4).949 250.0.970 297.6.753 288.6.539 302.7.518 304.9.352 16.6.682 45.0.677 73.9. 936 102. 8.964 67.0

(-17.9). 904 283. 6.733 291.7.717 292.9

. Feb. 14

. Feb. 14

. Feb. 14

. Feb. 16

. Feb. 16

. Feb. 16

. Feb. 16

2.1352.5351.6324.3310.6307.5305.8263.3254.1250.0239.9

(291.6)16.70.7

352.6351.9326.1310.8308.3306.1275.5253.7249.7240.1212.7210.9

(281.1)353.8351.9327.2308.5306.6275.2249.6240.5210.9210.6

(263.7)326.3307.4305.8

- 17.- 18.- 22.- 19.

- 22.

- 23.- 28.

L t ion Area у -p Nfeasures Fbsition

ind

Spots No. Dist. Ang.

o 1958 o o o

Feb. 16. 611 continued-18.6 56 333 18522 .753 306.3 304.2 +21.2+25.6 28 ПО 18519 .395 328.7 275.8 +12.9-16.1 3 15 1397с .280 328.9 272.0 +7.0+ 8.7 37 210 18517 .380 18.7 256.5 +14.2+19.0 1 8 18516 .553 24.9 249.1 +23.3+11.1 281 1364 18523 .385 110.9 242.0 -14.3+11.0 202 960 18518 .431 60.1 241.7 +5.9-24.7 3 14 18521 .801 102.7 210.2 -14.2+14.6 5 35 18520 .862 62.1 209.8 +19.8+23.0 36 184 18524 .941 107.3 192.6 -18.5+ 5. 7 23 173 18525 . 942 103. 7 192. 4 -15. 2

18526 .993 П3.9 178.3 ~24. 5

(-6.8)-13. 9 88 509-18.9 60 361 Feb.17.481 (-I8.1) (252. 3) (- 6.9)+25.5 17 87 18515 .965 282.5 325.2 +10.1-15.8 9 68 18511 .849 287.3 307.7 +10.7+ 9.1 28 200 Ь .835 288.1 306.1 +11.0+19.4 1 5 18522 .839 300.3 302.9 +20.7+11.0 273 1370 18519 .505 309.9 275.6 +12.5+11.0 210 998 18516 .508 6.5 248.7 +23.3+12.8 2 14 18523 .198 129.5 243.3 ~14.0+15.0 4 21 18518 .286 41.3 241.4 +5.6+23.0 31 166 18521 .673 104. 2 210.1 -14.6+ 5.7 40 214 18520 .775 56.8 208.8 +20.1+20.7 7 40 18524 .860 107.5 192.7 -18.5-14.1 19 101 18525 .863 103.7 192.2 -15.2

18526 .959 113.6 177.5 ~24.618527 .983 101.7 171.9 -12.7

(-6.9) а .983 101.7 171.9 -12.7-21. 1 20 137+24.6 8 50+ 9.1 30 216 Feb. 18. 628 (-18.5) ( 237. 2) ( - 7. 0)+10.8 227 1165 18511 .952 284.0 307.2 +11.0+11.0 177 916 Ь .946 284.4 306.0 +11.1+12.7 25 127 18522 .938 295.5 302.0 +20.9+22.9 23 199 18516 .536 340.7 248.3 +23.4+ 5.6 34 185 18523 .195 227.3 245.7 -14.5-14.4 8 83 18518 .240 339.1 242.1 +6.0+19.9 37 234 18521 .459 Ю8.9 210.6 -14.8

18520 .625 43.9 209.7 +20.51397 'd .605 104.1 200.2 -14.1

(-6.9) 18524 .706 109.5 192.8 -18.7+ 9.1 23 85 18525 .707 104.3 192.2 -15.0+10.7 232 1126 18526 .861 114.4 178.0 -24.5+11.1 195 876 18527 .915 101.1 170.3 -13.0

continued a .901 100.9 172.3 -12.8

Area

IhK- flnOl<

241010

287

251222136016

8236196

1010302326157

1558424545

17915210307

2015

319

69256632

1383787

17328

14978

12673

397134

281172973

6424

15570

153893552

333190197197

14661275

3715347

11886187

67332183268194

A single spot on February 14; a pair of spots on the other days.One or two small spots.A small spot, breaking into two on February 22.A cluster of small spots, suddenly appearing on Februarydying out as it approaches the limb.A pair of spots, gradually separating in longitude. Onlyleader remains a f ter February 20.A small spot.A regular spot, with occasional companions, which becomes

16 and

the

composite in structure on February 22 and divides into two on

. Feb. 16 - 28.

. Feb. 17 -Mar. 1.

February 24.A regular spot until February 23, after which other spotsforming a short stream highly inclined to the equator.A short stream, led by a small regular spot which is theremaining component a f ter February 26.

appear,

only

Page 19: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

С 203

U.T.and

GroupNa.

1958

Feb. 19. 39518511

b1852218528185161852318518185211852918524185251852618527

а

Feb.20.4691852818530185231851618518185311852118529185241852518532185331852618527

а

Feb.21.41118530185231851618518185311852118534185241852518532185331852618527

a

Group 18528Group 18529Group 18530Group 18531

Group 18532Group 18533Group 18534

Group 18535Group 18536Group 18537Group 18538

Group 18539

Measures

Rad. Pos.Dist. Aig.

о

(-18.7).987 282.3.984 283.0. 977 293. 3. 875 280. 5.595 326.9.351 246.0.348 312.3.311 117.7. 586 47. 2.587 112.2. 587 106. 1.773 116.3.837 101.1.817 100.8

(-19.1). 974 277. 3.726 299.9.581 254.1.711 313.4. 529 296. 6.067 308.3. 148 167. 1.484 31.5.396 120.9.389 112.2. 486 52. 9. 526 95. 3.620 121.1.686 101.4.654 101.3

(-19.4).844 293.3.749 254.6.815 304.4. 707 287. 2. 265 277. 0. 227 229. 5. 280 185. 2. 243 143. 5. 216 129. 2.377 31.6.301 97.0. 479 129. 6. 516 102. 2. 479 102. 4

. Feb. 19

. Feb. 19

. Feb. 20

. Feb. 20

RM

о

( 227. 1)306.0304.9300.7286.7247.7246.4242.1210.6200.5192.3191.5177.6169.8171.9

(212.9)288.7253.6248.1247.0241.3215.9210.9197.6192.0191. 1189.8181. 1177.4169.5172.0

(200.5)253.8249. 1247.1243.2215.7210.8202.1191.8190.6188.9183.0176.7169. 5172.0

- 20.- 20.- 21.- 26.

i tien

о

(-7.0)+10.9+11.4+20.9+ 5.7+23.3-14.8+ 6.7-15.0+17.2-18.5-15.1-24.6-13.1-12.9

(-7.0)+ 5.5+15.9-14.8+23.4+ 7.5- 4.6-15.3+17.5-18.2-14.9+10.5- 8.7-24.4-12.9-12.7

(-7.1)+15.3-16.2+22.6+ 6.8- 5.0-15.4-23.3-18.2-14.8+11.7-8.9-24.3-12.4-12.2

A pair

Area U.T.and

ю1е Group

1958

Feb. 22, 359125 909 1852385 682 18516

58

21 1851852 18531

22 151 185218 40 18534

21 135 1852474

11

33 1852530 1853248 18533

63 345 1852630 165 1852746 298 a32 163 18535

437

1853618537

201428

Measures

Rad. Pos.E&st. Aig.

o

Position

Long. Lat.

0 0

(-19.7) (188.0).870.905.828.452.405.342.207.145.327.075.351.349.287.502.737.994

20 146 Feb.23.44521 140 1851616919

60 1851821 185319 18534

35 1852559 326 1852410

538 1853223 18533

39 173 1852647 283 1852734 182 a

04

1853518536

6 1853711

.970

.938

.628.494.313.348.409.205.306.132.088.263.623.958

256.5300.1284.6273.4248.1217.3197.3193.9358.5120.9150.0107.8110.196.8

128. I57.5

249.0246.4241.8214.8210.8200.9191.7190.1188.5184.3176.9168.2172.1157.8144.8110.0

(-20.0) (173.7)296.1279.0270.0236.2245.3232.6323.9257.2187.3135.0163.298.4

137.455.2

244.8242.1212.7199.9190.7190.6187.9185.3176.1168.2172.2158.5143.5108.1

(-7.1)-15.2+23.4+ 7.9- 4.8-15.2-22.6-18.4-15.1+11.9-9.3-24.6-12.8-12.4-9.6-32.3+31.1

(-7.1)+23.1+ 5.9-5.5-22.3-14.2-19.0+12.4-9.6-24.7-12.4-11.9- 9.0-33.4+30.4

Area

Uib №ole

Spots

0154

391

153

8384

206530

21

48

43

1592

1051l4

22462203

62

28412

1784

6614

6023015

142309120316

316

341683

414646

21il14

14128085

520

453

18 10517 45 Feb. 24. 37630 160 185317

113

16 1853439 1852527 18533

73 413 18526168

56 1852714 a

22 139 1853827 225 1853722 146 18539

of spots, appearing near

(^20. 2) (161.5).795.644.503.413.399.164.201.263.891.984

268.4243.6253.3261.6215.8235.5245.6118.450.2

114.0

214.3199.9191.2185.9176.4169.4172.2147.8109.179.8

(-7.1)- 5.6-22.2-14.5-10.0-25.7-12.4-11.7-14.1+30.5-24.8

2512399

229311910460

125686565

61911618937

43252

the west limb.A small spot.A tiny spot.A short stream, appearing near the central meridian . Only one spotis seen on February 23.

. Feb. 20

. Feb. 20

. Feb. 21

- 23.- 26.- 27.

A fewA pairA few

small spots, which are inof spots on February 20;

stream formation ona single spot

small spots, developing into aThe group breaks up as it approaches

. Feb. 22

. Feb. 22- 23.- 28.

. Feb. 2 2 -Mar. 3.

. Feb. 24 -Mar. 3.

. Feb. 24 - 27.

bi-polarthe west

February 21.thereafter.grouplimb.

on February 23.

A small spot.One or two small spots.A composite spot.A stream of small scattered spots when f i rs t seen on MarchThese grow very rapidly to form a moderate-sized bi-polarwhichTwo or

24.stream

decreases in area as it approaches the west limb.three small spots.

Page 20: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 204 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

QrcxpNo.

1958

Feb. 25. 29418531185341852518533185401397 e1852618527

a1853818536185371853918541

Feb.26. 52618531185341852518533185401852618527

a1853818536185371853918541

Feb. 27. 5 1718534185251852618527

a1397f185381853618542185371397g

меа

Rad.Dist.

.911

.775

.665

.598

.525

.658

.527

.370

.393

.125

.471

.817

.937

.979

.989

.910

.839

.800

.745

.707

.614

.630

.278

.464

.721

.819

.871

.977

.936

.834

.788

.788

.563

.475

.540

.365

.657

.563

sures

R».Ang.

о

(-20.5)267.9247.7255.7262.8269.5317.1231.4256.5257.9173.0166. 144.1

113.982.4

(-20.8)266.2249.6256.4263.5267.0241.8261.0261.6241.7192.632.3

115.478.4

(-21.1)249.3256.3244.7262.3262.3303.7252.3209.9

10.420.386.1

rosi

Lang.

о

(149.4)215.2199.7191.0186.3181.1178.3176.5170.9172.4148.5141.6108.279.072.3

(133.2)214.9199.4190.7186.7181.6176.4171.2172.4147.8140.2106.678.874.3

( 120. 1)199.3190.4176.2172.5172.5148.6147.9139.1116.2104.886.0

L tien

Let.

0

(-7.2)-4.9-21.8-14.8-10.1- 6.4+22.5-25.6-11.7-п.з-14.3-34.3+30.5-24.8+ 5.9

(-7.2)- 4.8-21.5-15.3- 9.6- 7.1-24.8-11.2-10.9-14.5-33.9+31.1-24.8+ 6.4

(-7.2)-21.7-15.4-25.0-10.5-10.5+11.8-14.7-34.7+13.8+30.9- 3.8

Ai

Uib.

4114990

011

222216

1001229115

1312697

07

151614

1151035124

41701011111

10242

242

•ea

VholeSpots

201703540

269

14310782

50331

29811736

79676507

628818060

71447

4055726

321512715858

5569

2314

28212

U.T.and

GroupNo.

Measures

Rad. Pos.Dist. Arg.

1958 о

Feb. 27. 517 con tinued18539 .691 118.418541 .737 74.61397h .879 103.4

Feb. 28.492185251852618527

a185381853618542185371854318544

Mar. 1.54418527

a185381397 i1853718543185451854618544

Mar. 2.43518538185371854318545185461854418547

Маг. 3.362185381854218548

(-21.4).987 255.0. 925 244.2.906 261.7.906 261.7.636 255.6.642 221.7.412 333.0.626 4.0.308 151.7.995 106.8

(-21.6)979 260.4979 260.4

256.2252.8346.3192.698.4

102.7106.7

.807

.492

.639

.280

.949

.967

.972

(-21.8).909 255.8.698 331.4

219.297.8

102.2106.571.0

.379

.873

.899

.909

.984

(^22.1).976 255.1.804 294.7.718 261.8

Fbsition

Ixxig. Lat. Uib.

Area

Vlhole

78.3 -24.674.7 + 6.357. 9 -15. 2

(107.3) (-7.2)189.3175.6172.9172.9146.7138.5118.4104.498.221.3

-15.9-26.6-10.6-10.6-14.7-34.8+14.4+31.3-22.8-17.3

(93.4) (-7.2)172. 5 -10.8172.5147.5122.3103.597.221.217.215.6

-10.8-15.3-14.7+31.1-23.0-10.2-14.1-17.9

(81.7) (-7.2)147.8 -15.9104.696.820.417.015.65.1

+31.1-24.0-10.3-14.1-18.0+17.2

(69.4) (-7.2)148. l -16. l118.3

61о

151582

3l

39l

34

141462

l11119

87188

755

441681

25319

Spots

3026

2

424217171

664165

2868

273

7272

4422

1405864

4751720

39624

21782

4031778

126

115.6+14.9-10.9

con tinned

43 329О 35 17

continued

Group 18540. Feb. 25 - 26. One or two tiny spots.Group 18541. Feb. 25 - 27. A single small spot on February 25; a pair on the other days.Group 18542. Feb.27-Mar.3. Intermittent. A tiny spot.Group 18543. Feb.28-Mar.7. A tiny spot, appearing just, east of the central meridian. On the

next day other spots appear and the whole develops into abi-polar group before reaching the west limb.A large complex stream, of which the rear part soon breaks up.After March 8 the whole group rapidly diminishes in area and hasnearly died out at the west limb.A pair of small spots until March 3; a single spot on theremaining days.

1 - 1 3 . A stable regular spot, closely associated with Group 18544.2 - 1 1 . A pair of spots until March 8; a single spot thereafter.3 - 5. A few small spots.

Group 18544. Feb.28-Mar.13.

Group 18545. Маг. 1 - 8 .

Group 18546.Group 18547.Group 18548.

Mar.Mar.Mar.

Page 21: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 205

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.aid

OOPNo.

1958

Mar. 3.362185371854318549185451855018546185441854718551

Mar. 4.3731854818543185521854918545185501854618544185531854718551

Mar. 5.46818548185431855218549

a1397J1854518550

a185541854618544185531854718551

Measures

Rd.n.St.

Pos.Arg.

о

Position

Long.

о

Lat.

о

Area

Ihb. WholeSpots

continued.774.517.750.719.889.791.810.930.984

.858

.677

.575

.642

.524

.804

.635

.665

.725

.830

.929

.949

.827

.749

.536

.529

.247

.300

.695

.680

.395

.439

.476

.514

.685

.824

320.9234.048.798.747.2

102.3106.568.264.1

(-22.3)261.2241.9258.936.8

101.039.7

104.1109.0101.163.961.8

(-22.6)261.0245.6259.8

14.58.8

132.0106.626.622.897.2

108.7114.5101.6

55.455.6

104.096.531.523.218.716.815.15.0

354.3

(56.1)115.796.891.231.224.518.716.814.99.45.1

353.7

(41.7)114.097.190.533.336.630.724.720.323.718.416.414.810.85.7

354.3

+30.9-24.0+24.0-11.2+32.7-14.1-17.6+17.2+23.8

(-7.2)-11.2-24.1-12.2+24.3-11.9+32.5-14.5-17.9-13.0+16.9+22.8

(- 7.2)-10.8-24.1-12.4+24.0+24.2-16.5-11.8+31.6+31.9-9.4-14.6-17.8-12.1+17.0+23.0

247133

2676

214125

137312182

5375

26211209

361927344

26

8044

166

2095

1617

9410

7219

157358

174010536

5343663

1428

292337

175749

11442

20384427365189

1423

473267

8306

1684236680

и.т.and

GrtxpNo.

1958

»fer. 6.637 .185431397k1855218549

a1854518550

a185541854618544185531854718555185511855618557

Mar. 7.365185431855218549

a1854518550

a1854618544185531854718555185511855618557

Mar. 8.3711855218549

a

«KB

Rad.Dist.

.935

.939

.892

.530

.548

.085

.633

.632

.154

.216.257.287.520.504.682.967.990

.977

.957

.584

.611

.161

.630

.639

.135

.195

.154

.422

.381

.599

.911

.953

.991

.689

.720

sures

Pos.Ang.

о

(-22.8)247.0267.0259.8346.0341.0161.4

7.02.4

100.4127.6134.2107.039.3

113.645.472.077.6

(-23.0)247.2259.6331.8326.8240.2354.6349.5174.4170.9121.221.0

120.835.770.476.6

( -23. 2)257.7316.4313.8

rosi

long.

о

( 26. 3)96.596.490.034.337.524.721.124.517.516.215.210.16.2

357.4354.7314.1306.4

(16.7)96.190.734.238.124.920.724.515.914.89.07.7

356.7354.6314.4306.4

(3.5)86.934.638.0

.tien

Lat.

о

(-7.2)-24.0- 5.3-12.3+23.7+24.0-11.8+31.6+31.8- 8.7-14.6-17.3-11.7+16.9-17.9+22.4+15.3+11.1

(-7.2)-23.7-12.0+24.0+24.0-11.7+31.5+31.6-14.9-18.2-11.7+16.0-18.0+22.4+14.5+10.4

(-7.2)-13.1+23.7+24.0

A

Uib.

546

1769465

26235

264

17837364

38

5019112779

4765078

19214230

65

11911690

rea

flholeSpots

31532

1098540313

11455294

18285

13561645253329

446

2821762748406

16533346294

1484121817238

394

484633454

con tinued

Group 18549. Mar. 3 - 1 1 .

Group 18550.

Group 18551.

Group 18552.

Group 18553.Group 18554.

Group 18555.Group 18556.

Маг.

Mar.

Маг.

Маг.Mar.Маг.Маг.

3 -

3 -

4 -

4 -5 -6 -6 -

13

14

8

116716

Group 18557. Маг. 6 - 18.

A pair of spots on March 3, developing into a stream. The leaderbecomes a regular spot by March 8; the remaining components aredying out as the group passes from view.A pair of spots, developing into a long stream of which the leaderbecomes a regular spot by March 9.One or two small spots, not seen on March 9. After March 10 thegroup develops into a short stream, which is growing as itapproaches the limb.A compact stream, developing west of the central meridian andgrowing rapidly as it passes from sight.A stream of small variable spots.One or two tiny spots.One or two tiny spots.One or two small spots, developing into a stream of which only theleader remains at the west limb.A composite spot. From March 10 to 15 preceding spots appear,forming a stream.

Page 22: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 206 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.ml

Measures

Group Rad. Роз.№. Dlst. Ang.

1958 о

HJSJ

Long.

0

Ltion Area

ш- "*• 5£о

Mar. 8.371 continued1854518550

a185461854418553185471855118558185561855718559

Mar. 9. 37518549

a18550

a1854618544185531854718558185561855718559

Mar. 10. 37418549

a18550

a1854618544185531854718551185581855618560185571855918561

Group 18558

Group 18559

Group 18560Group 18561Group 18562Group 18563

Group 18564

Group 18565Group 18566

. 376 256. 4

. 670 338. 1

. 688 334. 4

.252 236.4

. 280 226. 0

.137 236.8

. 400 349. 5

.516 15.6

. 800 56. 1

.791 65.4

.866 73.2

.953 71.4

(-23.4).818 306.7.836 305.3. 748 326. 2.781 322.5. 445 250. 2.443 241.9.353 256.8.485 322.9.651 45.0.644 57.2.733 68.2.865 68.0

(-23.6).916 300.1.923 299.8.823 317.4.862 314.0.627 254.4.627 249.8. 561 259. 8.619 306.8.566 331.0.555 31.0. 487 41. 2.513 50.2. 574 59. 8. 696 62. 4.802 61.4

. Mar. 8

. Mar. 8

. Mar. 10

. Mar. 10

. Mar. 12

. Mar. 12

. Mar. 12

. Mar. 13

. Mar. 13

25.320.523.816.015.710.27.8

354.9318.1315.7306.2294.3

( 350. 2)36.138.419.524.315.814.410.67.8

320.8316.4306.6294.3

(337.1)36.938.117.923.915.715.211.37.9

354.3319.3317.8313.4306.9297.9289.6

- 12.

- 19.

- 15.- 11.- 13.- 21.

- 24.

- 14.- 17.

-11.7 1 6+31.5 170 762+31. 5 109 477-15.0 74 317-18.2 213 1152-11.4 12 37+15.9 4 12+22. 5 1 8+21.5 3 15+14. 4 7 25+10.7 91 562+15.2 0 15

(-7.2)+24. 3 144 688+24. 1 124 569+32. 1 178 1167+32. 3 90 490-15. 1 60 286-18. 5 134 934-11.4 9 36+15.8 2 11+21.1 5 15+14. 4 8 30+10. 5 79 467+15.0 47 222

(-7.2)+23.8 96 446+23.9 94 426+31.8 137 992+31.9 90 481-15.4 59 293-18. 2 79 553-11.7 7 33+15. 5 7 14+22.6 5 29+21. 5 9 44+14.6 7 32+12. 5 2 17+10. 5 61 346+13.2 62 361+17.8 9 40

One or two spots,March 10. Only tlA stream, developgrowth occurs aftand the followingcoalesces with thA stream of smallA small spot.A tiny spot.A slowly-diminishMarch 13 and 14.An elongated strebreaking up and d;A small spot.A stream of small

U.T.and

GroupNo.

1958

Мэг. 11. 36818549

a18550

a1854618544185531854718551185581855618560185571855918561

Mar. 12. 35118550

a18546185441856218551185581855618560185571B5591856318564

Mar. 13. 445185461854418550185651856218551185561856018566

Rad.Dist.

.975

.979

.907

.933.784.786.729.759.679.489.396.367.411.549.664

.964

.980

.901

.898

.777

.801

.502

.394

.344

.304

.424

.936

.984

.979

.959

.987

.943.890.917.523.452.263

sures

Pos.Ang.

0

(-23.8)297.0296.6310.6308.8256.3252.9260.2298.0315.2

8.816.425.843.952.352.7

(-24.0)306.1305.2256.6253.4250.2304.6337.6344.5350.9

11.434.670.876.6

(-24.2)256.0253.3303.4237.0250.8297.7314.6316.3245.8

rosi

Long.

о

(324.0)36.237.418.223.115.915.9П. 17.9

355.1319.4317.1314.6307.2297.6290.5

(ЗП.О)17.422.216.015.6

1.8356.2322.7317.2314.2307.5296.7245.0233.4

(296.6)16.011.310.87.70.0

357.4319.2315.2310.8

.tien

Lat.

о

(-7.2)+24.3+24.1+32.1+32.2-15.2-17.9-12.1+15.7+22.6+21.7+15.1+12.2+10.3+13.1+17.7

(-7.2).+31.9+32.3-15.2-18.1-19.8+22.0+20.5+15.0+12.6+10.1+13.4+15.1+11.7

(-7.2)-15.1-18.0+31.2-33.4-20.4+21.8+14.8+12.2-13.1

Al

Ulfa.

8279

137816572

22

128

301264813

1108158480

291

481755871560

62201090

402174

rea

WholeSpots

412391875527299499

147

6736

15977

393491

16

827578331379

7148

621811940057662

471

28196

174194

2071346132

continued

from one or two spots at the east limb. Rapidgrowth occurs after March 13 as the leader becomes a composite spot

nponents form a compact structure whicheader on March 18.riable spots.

regular spot, with one or two companions on

with a following regular spot. The group isand dying out as it passes round the limb.

small variable spots, of which only the leader remainson March 17.

Page 23: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962l PHOTOHELIOGRAPHIC RESULTS 1938 С 207

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

IT f treasures

andGroup Rad. Fbs.

ND. nst. Ang.

1958 о

TOS]

Long.

0

L um

Let.

о

«rea UT

and... Wiole Group

Spots to.

1958

Mar.13.445 continued18557185591856318564

Ь

Мэг. 14. 488185651855118556185601856618557185591398a1856318564

b1856718568

Mar. 15. 53718556185601856618557185591398Ь1856318564

b18567185691856818570

Mar. 16. 4821855618566185571855918571

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

345 329. 0347 358.0833 65. 5925 74. 1968 76. 6

( -24. 3)988 236.8977 295. 0679 300.7617 299. 1489 256.9485 305.8413 324.3644 50.0692 58. 3811 69.5884 73. 4972 50.7979 112.7

(-24.5)832 292.4767 293. 9693 258.9666 293.7564 305.3350 51.2533 44.8669 63. 1752 68.7921 46.3911 99.7912 112.7945 68. 5

(-24.7)938 287. 2

.824 258.7

.797 288.4

.707 296. 7

.866 333.2

306.9297.3244.8231.5223.2

( 282. 8)6.5

356.0319.8316.0311.9306.2297.0251.6245.3232.1223.4215.5202.7

(269.0)321.3314.9313.0307.1297.0253.2246.2231.6223.7214.3202.7202.5202.0

(256.6)323.5312.5306.6296.9289.8

+10.0+13.0+15.8+11.7+11.0

(-7.2)-33.8+22.5+14.5+11.4-12.7+ 9.8+12.5+18.2+15.6+11.9+11.0+35.4-23.6

(-7.2)+14.1+13. 1-12.9+ 9.8+12.6+ 5.7+15.5+11.9+10.8+35.5-11.8-23.6+17.5

(-7.1)+13.4-13.3+10.0+13.1+44.7

62 259113 73228 169

103 79325 82

0 1340 25121 12412 5222 9950 279

188 12193 17

21 10192 62721 9538 19217 79

12 752 99 52

52 283224 1387

3 1515 6482 53511 9037 249

2 1311 4211 77

10 446 46

36 231190 1413

2 11con tinued

Group 18567Group 18568

Group 18569Group 18570Group 18571Group 18572Group 18573Group 18574Group 18575Group 18576

Group 18577Group 18578

,Mar. 14Маг. 14

- 25.- 21.

measures

Rad. R».Dist. Ang.

0

rosi

Long.

0

tien

Lat.

о

Ai

Uib.

•ea

Spots

Mar. 16. 482 continued1856318564

b185671856918568185701398с18572

Маг. 17. 389185661398d185571855918573185711856318564

b18567185691857018568185721857418575

Mar. 18. 6421855718559185731856318564

b185671856918568185721857418575

a185761857718578

.423 25.1

. 539 53. 5

.612 61.5

.858 40.5

. 799 99. 3

.817 113.9

. 865 64. 4

.957 45.7.954 105.6

(-24.8).945 258.8.954 290.1. 897 285. 0.832 290.6.743 286.1.909 327.2.384 357.2.414 36.4. 469 49. 5.783 32.0.664 100.0. 753 58. 2.698 116.6.878 105.4.907 92.9

.963 65.6

(-25.0).982 281.9.950 286.2.904 279.8. 479 322. 1.340 351.6. 322 14. 1.710 17.2.419 102.6. 509 125.0.718 105.8. 759 90. 5.859 59.8.846 59.7.917 76.9.953 103.8.979 63.6

245.9230.4223.5213.5203.2202.2201.7195.3183.0

(244.6)316.3313.6306.0297.4290.4288.5245.7230.1223.4214.1202.8202.4201.9182.6179.3174.7

(228.1)305.4297.3291.4245.8231.0223.5213.2203.5201.2182.3178.7175.4176.8163.6154.7154.6

+15.5+12.3+11.0+35.6-11.7-23.6+17.9+38.8-17.0

(-7.1)-12.9+16.7+10.1+12.8+ 6.9+44.8+15.4+12.5+11.1+35.4-11.9+18.1-23.5-16.9- 5.6+21.1

(-7.1)+10.2+12.9+ 5.7+15.4+12.5+11.1+35.7-11.7-23.3-16.2- 5.0+21.3+20.9+ 9.0-15.2+24.0

167915503943

33

30

37147

10

16771837029

250

53

2895106

96222542

240

7351307

17

62566103227

15413119

112

2315

2051505

88

7070696

2417

1451

10813

315

1791778

3834

59584

2226

10118

34693651402191

A composite spot, followed by occasional companions.A small regular spot, which breaks up and dies out near the centralmeridian.

.

.

.

.

Mer. 15Маг. 15Маг. 16Mar. 16Маг. 17Mar. 17Маг. 17Маг. 18

Mar. 18Маг. 18

- 19.- 17.- 17.- 28.- 18.- 18.- 28.- 29.

- 21.- 30.

One orA smallA smallA smallOne orA tiny

two tinyspot.spot.regular

two tinyspot.

A large bi-polarA regular spot,and 24.

spots.

spot.spots.

group,preceded by some small companions on March

A small spot.A pair of spots, developing into a stream ofintermediate spots disappear by March 28 andbefore reaching the west limb.

normal type,the follower

23

Thedies out

Page 24: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 208 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.arei

GroupNo.

Measures

Rod* ^bs.ttst. Aig.

Fbsiticn Area

Long. Lot. Uib. «hole%jots

U.T.sal

Group№.

Measures

Rad. Fbs.Dist. Aig.

Fbsiticn

Leng. Lat.

Area

Uib. «holeSpots

1958

г. 19. 61818559185631857918564

b1856718569185681857218575

а18576185801857718578

.988

.617

.537

.436

.342

.686

.209

.372

.561

.748

.727

.812

.862

.871

.946

(-25.1)283.5306.6324.5320. 1336.1

4.31147138.5108.353.151.773.7

112.4103.760.5

(215.2)294.2246.0234.4231.8223.3211.6204. 1199.7181.7175.4177.6163.3155.6154.1150.2

(-7.1)+12.1+15.5+19.1+12.7+11.1+36.0-11.9-23.0-16.0+21.2+21.2+ 8.8-22.8-15.4+24.9

2865

691045

54

161871292802

30

3462243

67854

3021823

1021135704160

1115

194

Mar. 20. 378185631857918564

Ь18567185681857218575

18576185801857718578

(-25.2).729.629.542.435.690.302.423.658.632.708.707.762.776.892

299.4312.8307.4315.1352.9160.6113.345.042.848.270.0

1140104. 157.8

(205.2)246.3234.3231.3223.4211.2199.0181.5175.3177.9170.5163.1156.4154.1149.3

(-7.0)+15.7+19.1+12.9+11.2+36.1-23.5-16.0+21.6+21.3+22.4+ 8.8-22.7-15.3+24.5

314778

582

2332820212636

22

112

1811258541

32616

1031477817660165

129

443

Mar.21.3721398e185631857918564

Ь18567185681857218575

ab

185761858018577

(-25.3).821.850.748.694.590.726.310.243.550.524.594.551.620.612

256.1293.1303.0296.1300. 1339.6203.5130.1

29.524.935.561.7

118.5105.7

( 192. 1)247.6246.1233.5231.6223.3210.3199.8181.0175.2178.4170.3

162.8156.0154.6

(-7.0)-15.4+15.4+18.8+12.4+11.2+36.1-23.4-15.8+21.8+21.5+22.3+ 9.0-22.9-15.1

22

325212370

252341301043130

38

16248743

3195

114155583072513710

1

1958 о

Mar. 21. 372 con tinued18578 .805 51.2

a .762 49.6Ь .831 52.1

18581 .948 71.718582 .970 68.9

148. 4 +25.2152.7 +24.2145.5 +25.9123.7 +14.8119.8 +18.4

Group 18579.Group 18580.Group 18581.Group 18582.Group 18583.Group 18584.

Group 18585.

Group 18586.

Mar. 19 - 23.Mar. 19 - 26.Mar. 21 - 22.Mar.21-Apr.l.Mar. 22 - 26.Mar.22-Apr.4.

Mar.23-Apr.l .

Mar.23-Apr.4.

132 77644 31688 460

О30

6313

Mar. 22. 60 51857918564

Ь18567185831857218575

аb

185761858018578

аЬ

185811858218584

а

.903

.862

.778

.810

.355

.177

.479

.477

.501

.348

.456

.653

.614

.711

.846

.880

.986

.986

(-25.5)294.3288.6290.4326.5264.1208.4

3.5355.3

11.538.9

129.937.733.941.766.463.3

10L310L3

(175.8)235.8232.3223.6209.6196.6180.81740178.2169.6163.1153.5149.8153.8144.1122.4119.494.494.4

(-6.9)+18.4+12.2+11.1+36.7-8.5-15.8+21.5+21.3+22.4+ 8.9-23.3+24.8+241+26.1+15.7+19.6-12.3-12.3

89307

472

2223011511526

111750587

34175175

39125832

2782095

1394658736129

6663309306

35163879879

Mar. 23. 5661857918564

b18567185831857218575

1857618578

185821858518584

ab

1858618587

a

(-25.6).970.931.895.878.576.331.505.523.501.289.559.524.618.782.927.942.932.965.960.991.991

291.4286.2286.1318.8264.6240.6339.0333.6349.4356.821.014.829.658.066.8

101.9100.6104.395.3

109.4109.4

( 163. 2)235.5229.2224.2209.2198.5180.6174.3177.6168.9164.1150.5154.8143.4118.699.592.093.887.489.179.179.1

(-6.9)+18.7+12.3+11.1+36.6- 8.7-15.9+21.2+21.1+22.5+ 9.8+24.6+23.5+25.9+19.6+18.4-13.5-12.4-15.5- 7.0-20.1-20.1

43154

304

1726912912432

1338247320

19215438487272

2519224

28524

1111457734608140657373246187

171374959415307592592

Group 18587. Маг.23-Арг.6.

con timed

A short stream, developing-west of the central meridian.A group of small variable spots, not seen on March 23.A single spot on March 21; a pair on March 22.A slowly-diminishing regular spot with the occasional companions.Small variable spots.A large bi-polar group. After March 28 the follower begins tobreak up and die out.A pair of small spots, developing into a short stream of which onlythe leader remains on April 1.A pair of spots on March 23, developing into a stream. On March 29the follower increases in area before the whole group breaks up asit approaches the limb.A large bi-polar group.

Page 25: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 209

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

UT Measures

artGroup Rad- Pos.ГЬ. Dist. Aig.

1958 o

Маг. 24. 3761856418567185831857218575

аb

185761858018578

аb

18582185881858518584

аЬ

1858618587

аЬ

.968

.929

.736

.483

.583

.611

.551

.340

.288.517.506.564.681.686.859.868.849.896.889.973.956.987

(-25.7)284. 1314.5265.1249.6324.1318.5332.1326.3182.3

2.9355.3

14.950.990.563.1

101.8100.3103.694.1

110.9109.0111.5

Position

Long. La t.

0 О

(152.5)225.7208.3200. 1180.4174.0178.1168.6163.5151.8150.9155.1143.2118.5109.198.691.894.088.389.574.578.569.8

(-6.9)Ч 1.7+36.9-8.3-15.7+21.7+21.0+22.5+ 9.6-23.5+24.0+23.3+26.1+19.7- 5.4+18.8-13.7-12.4-15.2-6.8-21.8-20.1-22.3

Area

lu. Vitale"*' Spots

U.T.and

GroupNo.

1958

Measures

Bad. Pos.Kst. Ang.

о

Position

Long. Lat.

о о

Area

1ЬЬ Vlhole"*' Spots

Mar. 26. 303 continued4 29

42 2605 15

18 91267 1411144 787110 553

29 1180 16

105 54056 29544 21630 18412 492 11

220 1311151 88369 42823 182

264 1788197 79167 997

1857218575

ab

1857618578

185801858218588185891858518584

1858618587

. 797 255. 1

. 795 304. 7

.836 302.0.755 308.1.638 293.8.623 325.5.664 319.0.591 336.4.492 231.9.467 18.9.237 93.7.327 88.0.628 47.5.579 103.4.548 101.7.635 105.9.630 92.9.797 112.1.765 П1.4.855 112.6

Mïr.27.437 (-25.9)

Мвг.25.4921856718»Э1857218575

аЬ

185761858018578

аЬ

1858218588185891858518584

аЬ

1858618587

аb

Маг. 26. 30318583

Group 18588

Group 18569

.982

.855

.678

.706

.742

.665

.504

.373

.559

.576.550.550.431.511.737.717.699.767.758.891.866.932

.954

(-25.8)310.2263.9254.0311.2307.4315.6302.6216.9339.2331.7352.2

35.692.687.055.4

101.3100.2104.493.3

110.4109.6111.4

(-25.9)264.3

(137.8)208.2196.9180.3172.6176.9167.9163.2151.9150.4155.1142.5118.0112.2107.297.991.893.387.688.374.477.668.2

( 127. 1)200.0

. Mar.24-Apr.2.

(-6.9)+37.3- 8.8-15.9+22.0+21.4+22.3+ 9.4-24.0+24.6+23.8+26.0+20.0- 7.4- 4.4+19.4-12.9-12.0-15.4- 7.0-21.3-20.4-22.4

(-6.8)-7.5

A pair

34 2362 12

21 100207 1238127 67580 56322 1132 17

114 61184 35725 20438 17016 49

2 108 51

268 1539188 109480 44538 205

337 1562240 82997 733

0 10continued

1857218575

1857618578

1858218588185891858518584

1858618587

1859018591

.919 255.8

.913 298.1

.936 296.9

.876 300.7.810 286.7.752 311.1.793 307.4.691 320.1. 454 348. 1.048 265.2.075 58.3.481 27.1.361 106.9. 328 106. 1.425 110.1.402 91.2.640 115.5.591 115.9.712 115.1.964 105.9. 993 63. 9

Mar. 28. 344 (-26.0)1857218575

ab

.982 255.3

.972 295.4

. 987 294. 6

.942 297.4

180.1171.8176.8167.0163.2149.8155.5142.3152.0117.9113.4108.097.991.994.088.087.974.777.768.5

(112.1)179.5172.3176.3166.6163.7150.4155.5141.5117.8114.8108.498.891.593.487.988.373.977.768.036.533.1

( 100. 2)180.4172.1177.0165.3

-16.0+22.1+22.0+22.5+ 9.4+24.5+24.0+26.1-23.8+19.4-7.5- 5.8+19.1-13.3-12.1-15.3-7.1-21.7-20.7-22.8

(-6.8)-15.7+22.1+22.2+22.6+ 9.2+24.3+23.9+26.0+19.4- 7.0- 4.5+18.6-12.4-11.7-14.5- 6.7-21.3-20.5-22.5-17.1+24.8

(-6.7)-15.7+22.7+22.9»•23.0

252011069517744224

13223187

2341498532

27018981

1110169322874462331292616

1971187943

26817296

12416

5837310

1181253716537119522294181

151981879347

1483998485213

19921129863

3475951924013038926610717419213084

1434916518238

1564888676862228

2844837078

continued

of spots or. March 24;into a cluster which

Mar.25-Apr.2. A fewMarch

small spots on27 . the leader

becomesMarch 25

a single spot on Marchcomposite in structure

25 , developingby March 28.

, developing into a stream.temporarily increases

following spots break up andGroup 18590

Group 18591

. Mar.27-Apr.8.

. Mar.27-Apr.8.

A stream, of which the leaderoutline after March 31. TheApril 5.A regular spot, with

in area, whileAfterthe

die out by March 31., a composite spot, becomes regular infollowing components die out by

occasional companions.

Page 26: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 210 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.ard

&cupNo.

1958

Маг. 28. 3441857618578

18S8218588185891858518584

1858618587

18590a

18591IS 592

Mar. 29. 4701857618578

185931398f185821858818589185851859418584

ab

1858618587

18590a

1859118592

Measures

Rad.Bist.

Pos.Arg.

о

Position

Leng.

о

tat.

о

Area

Uib. VholeSpots

continued.914.857.882.775.525.258. 182.433.171.139.250.212.498.446.576.900.889.961.990

.986.961.962.874.861.754.663.511.455.484.•290.145.165.138.027.326.287.400.762.751.883.932

283.4304.0302.3310.8327.5270.0284. 1

2.1124.7126.6122.490.8

122.5124.7120.4105.4105.561.6

104.0

(-26.1)280.5297.7297.8300.9304.5301.2309.9268.1275.4332.4336.8227.6240.3194.7273.2143.0150.9134. 1106.4106.756.9

103.9

164.2151.3154.9140.5117.6115.2110.399.292.093.787.787.973.577.267.835.537.031.717.0

(85.3)164.1154.0154.2139.5136.7127.9117.8116.1112.298.991.991.693.787.4-86.873.276.767.335.736.730.815.8

+ 9.3+24.5+24.3+25.3+19.8-6.5- 4.1+18.8-12.2-11.4-14.2-6.7-21.5-20.9-22.6-16.7-16.8+24.8-14.8

(-6.7)+ 9.1+24.2+24.4+22.8+25.0+18.1+19.4-6.7- 3.6+18.8+ 8.7-12.2-и.з-14.4-6.7-21.5-21.1-22.5-16.8-16.9+25.0-15.4

2082721033634814

2171348346

2721591131491169914

267268

463

256046317

155857046

21215161

1441108533

127534485

49154361215104

1509942567288

1546898648

1015820329151

164516500

163710

11036928412737

1146798348305

1572859713

1061860301141

continued

U.T.and

GroupNa.

1958

Маг. 29. 470185951859618597

Маг. 30. 31918578

а18593185821858818589185851859418584

аЬ

1858618587

аb

18590а

185911859218596185951859718598

Мэг. 31. 327185931858818582185891858518584

аЬ

1858618587

аЬ

18599

меа

Rd.ÏHat.

sures

лэз.Ang.

0

rosi

Leng.

0

tien

Let.

о

Al

Uib.

rea

UnieSpots

con tinued.991.984.985

.995.995.930.771.674.620.571.429.311.343.263.219.271.263.300.637.625.796.847.931.957.939.990

.991

.834

.881

.800

.709

.521

.541

.459

.441

.335

.364

.298

.401

54.868.9

106.7

(-26.1)295.6295.6298.2302.1267.5273.5318.1307.8249.0254.7238.5270.1175.9188.9159.5107.9108.9

51.7104.166.352.6

106.167.4

(-26.2)294.5266.6296.6272.2306.0257.2259.0251.6269.8216.0224.2199.956.2

9.48.93.8

(74.1)154.4154.4136.9117.8116.6112.297.894.191.393.787.486.872.976.667.635.136.130.815.99.89.43.4

355.8

(60.8)139.2117.5117.4113.798.192.093.587.487.073.076.567.141.3

+33.4+19.3-17.6

(-6.6)+24.5+245+23.1+19.4-6.5- 3.0+19.0+ 9.0-12.7-11.4-14.3-6.4-22.2-21.6-22.8-16.4-16.9+24.8-15.4+19.2+32.9-17.3+21.2

(-6.6)+23.1-6.5+19.6-2.2+19.4-12.2-П. 5-14.2-6.0-22.1-21.4-22.8+ 6.7

1295

25

29292715794525

21891296072

26716610119316478348

1963221

5466

6278

1971633491

2081109825

80544

212

48448419292

414207135

211273845428431

1571893678

1149102732212655

913183185

498563

5114885

1229973256572

1463850613177

continued

Group 18592. Mar.28-Apr.6.Group 18593. Mar. 29 - 31.Group 18594. Mar. 29 - 30.Group 18595. Mar.29-Apr.10.

Group 18596. Mar.29-Apr.3.Group 18597. Mar.29-Apr.10.

Group 18598. Mar.30-Apr.il .

Group 18599. Маг.30-Apr.7.

A double spot, of which only one part is visible on April 6.A few spots, appearing near the west limb.A pair of small spots on March 29; a single spot on March 30.A compact stream, which spreads out after April 4 and begins todisintegrate as it approaches the west limb.A single spot, except on April 1 and 3, when there is в pair.Two or three small spots, developing into a stream, of which theleader becomes a composite spot. On April 4 a preceding regularspot detaches itself, while the remainder of the group begins tobreak up and die out.A variable cluster of small spots, not seen on April 6. Freshactivity develops on April 7, when a stream appears which isgrowing rapidly as it passes from sight.A stream, led by a regular spot which is the sole survivor at thewest limb.

Page 27: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 211

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

UT.and

GroupNo.

1958

Mar.31.32718590

a185911398g185921859618595185971859818600

Apr. 1.3621858818582185891858518584

ab

1858618587

ab

1859918590

a1859118592185961859518597185981860018601

Apr. 2.36118588185891398h18584

1858618587

Msasures

Rad. Pos.DLst. Arg.

о

continued.450 113.8.429 116.1.693 42.4.697 120.7. 707 105. 1.832 61.4.898 47.5.834 106.0.919 64.8.987 62.8

(-26.2).945 264.7.961 292.3.928 270.1.859 297.2.713 259.0.729 260.0.646 255.8.632 267.4.497 234.5.540 239.0.430 227.0. 247 20. 1. 263 130. 4. 250 137. 2.588 28.6. 534 109.0.705 57.2.816 41.4. 690 108. 1. 828 59. 2.947 59.6. 950 76. 2

(-26.3).995 263.2.989 268.3.900 296.7.851 259.7.860 260.1.796 256.9.777 266.5.644 243.1.701 245.7.580 238.7

R»i

Long.

0

35.537.229.819.215.910.38.54.1

358.8344.6

(47.2)118.4117.4115.2101.192.894.287.286.573.177.067.142.335.237.029.215.79.07.44.0

357.8342.0337.4

(34.0)118.6115.493.092.793.786.985.272.177.266.4

Ltion

Let.

0

-16.4-16.9+25.1-25.8-15.3+19.3+33.4-17.0+20.0+25.4

(-6.5)-7.1+19.3-2.3+19.3-12.4-11.7-14.1-6.7-22.6-21.7-23.1+ 6.8-16. l-16.9+24.8-15.5+17.3+32.7-17.1+20.9+26.0+10.9

(-6.5)- 7.4- 2.6+20.5-12.2-11.8-14.4- 6.8-22.0-21.5-23.0

Area

178 1041141 68473 318

2 2233 157

5 40197 117754 30420 1830 18

36 2960 12

17 1014 17

139 1170118 100621 16467 398

230 1274149 76181 51338 242

190 iioo155 77774 38528 12410 55

182 129476 49016 7114 1203 6

19 2167 522 15

112 98897 89315 9536 197

130 93181 52849 403

con tinned

U.T.ni

ОлхрND.

1958

Apr. 2.3611859918590

a18591185921859618595M597185981398Í18600186011398 j1860218603

Apr. 3.37018584

a1858618587

1859918590

a18591186041859218596185951859718598186001860118602186031860618605

Apr. 4.37818584

a1858618587

Measures

Rad.DLst.

Pos.Ang.

о

Position

Long.

0

Let.

0

Area

lib. WholeSpots

con tinned.277.173.182.530.348.577.728.514.704.754.874.874.938.942.976

.947

.953

.905

.794

.837

.724

.454

.315

.328

.535

.326

.184

.452

.657

.325

.572

.789.728.847.915.990.990

.991

.996

.976

.899

.932

.848

326.1188.9195.6

8.2117.640.831.0

111.751.343.855.073.177.0

111.1115.5

(-26.3)259.0259.2264.9247.1248.2244.5300.4234.6235.8346.21749150.521.817.7

122.937.548.968.1

112.3116.072.976.3

(-26.3)257.5258.0263.7248.6249.3247.3

42.935.636.929.215.410.57.64.2

358.1358.0341.2335.7326.2322.9315.2

(20.7)92.693.785.872.577.265.643.936.237.128.718.915.310.67.14.3

358.9339.3337.4323.0314.4301.3300.7

(7.4)90.793.485.271.676.765.0

+ 6.8-16.3-16.5+25.0-15.4+19.8+32.7-16.6+20.8+27.6+26.2+11.4+ 9.7-22.0-26.2

(-6.4)-12.4-12.2- 7.4-22.0-21.7-22.7+ 7.4-16.7-16.7+24.8-25.2-15.5+18.4+32.4-16.3+20.9+26.4+11.1-22.3-26.3+15.8+12.5

(-6.3)-13.2-12.5-7.5-21.9-21.5-22.5

441431227024

2189157

177

1618339

888327

1601124829

1651568818195

132104

111529

25

2469

37324

1067630

212814677303103

101123613

6729

10076131661

773724157762526236158827718336814512

1002600

463682

431

154604

458404

29732511221

continued

Group 18600.

Group 18601.

Group 18602.Group 18603.Group 18604.Group 18605.Group 18606.

Mar. 31 -Apr. 8.Apr. 1 - 7.

Apr. 2 - 6 .Apr. 2 - 4.Apr. 3 - 9.Apr. 3 - 15.Apr. 3 - 15.

A few small spots, not seen on April 7.One or two small spots, developing into a short stream of whichonly the leader remains on April 7.A small spot.A small spot.A ahort stream, of which only the leader remains on April 9.A stable regular spot, with occasional companions.A stream, consisting of a leading regular and following compositespot. The leader, breaks up on April 7, while the composite spotbecomes regular in outline on April 8. Only the latter is visibleon April 14.

Page 28: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 212 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T. Measures

andGroup Rad. R».

No. Dist. Arg.

1958 о

Fbsition

Long. Let.

0 0

Area

Apr. 4.378 continued1859918590

a185911860418592185951859718598186001860118602186071860318608

a186051860618609

Apr. 5.61218587

185991399a18590

a185911860418592185971859518598186101860018601186021860718608

a18605186061860918611

Apr. 6.36018587

Ь

.610 291.9.506 247.7. 506 247. 7.608 327.9.375 208.4.211 218.7. 625 1. 1. 177 167. 2.475 17.9. 685 37. 8.609 58.1.724 114.9.800 64.3.818 118.2.868 72.7.860 73.1.936 74.2.952 71.5.956 81.0

(-26.4). 984 248. 5.995 248.6.956 248.2.821 284.4.757 261.5.714 253.0.714 253.0.736 313.6.540 230.9.426 245.7.294 231.6.650 342.2.462 344.6. 521 5. 4.596 17.7.403 37.7.535 122.7.636 55.2.703 67.2.689 67.4.810 69.9.851 67.6.842 77.4.960 41.9

(-26.4).990 248.1.990 248.1

42.136.536.528.218.715.26.65.1

358.5339.4335.432Z4318.9314.0309.8310.6300.4298.1295.7

(351.1)72.277.165.044.340.536.336.327.118.614.84.94.6

358.6348.0339.3336.5322.1318.3309.9311.0300.2296.6295.4290.5

(341.2)64.7647

+ 7.9-16.6-16.6+25.0-25:4-15.7+32.2-16.2+20.5+27.1+13.4-22.2+16.1-26.5+11.6+11.1+12.4+15.4+ 6.6

(-6.3)-22.2-21.8-22.6+ 8.0-10.5-16.5-16.5+25.3-25.4-15.8-16.6+31.9+20.1+24.8+28.3+12.5-22.3+16.0+11.1+10.5+12.2+15.3+ 7.0+42.7

(-6.2)-22.5-22.5

39 183155 964154 95771 34024 17812 37

110 95184 5847 785 35

16 1194 306 522 21

24 13818 103

130 59961 33910 69

49 46334 35415 10926 155

2 14178 1007178 100790 31128 173

1 2087 382

149 8826 47

12 507 358 388 33

75 39655 26737 181

123 580115 648

17 807 48

7 147 14

U.T. №a

ande Group Rad.9 N9. DLst.

1958

sures

R».

0

Position

Long. Lat.

0 0

Area

rr< Whole"*' Spots

Apr. 6.360 continued1859918590

a1859118604185921859718595186101399b1860018601186021860718608

a18612186131860518606186091861118614

Apr. 7.3181859918590

a185911860418597185951859818610186011860718608

a18612186131860518606186091861118614

Apr. 8.38418590

a

.918

.818

.818

.814

.644

.567

.440

.694

.523

.462

.572

.333

.417

.526

.582

.559.547.625.705.765.741.924.972

.986

.919

.919

.901

.780

.615

.780

.634

.591

.342

.411.420.395.333.434.547.627.588.866.931

.985

.985

281.725422542307.8236.8251.2244.2332.4347.0356.9

3.412.4

132.645.461.361.499.6

105.265.664174.438.441.0

(-26.4)279.22547254.7302.6242.0250.2321.7316.4328.4328.523.947.646.1

101.6110.356.556.467.732.636.8

(-26.4)2544254.4

46.236.136.126.517.71495.53.4

348.6342.7339.0337.0321.9318.4310.0311.4308.1303.0300.3295.9295.4290.1277.6

(328.6)47.735.935.925.917.15.63.5

356.6348.4339.0318.7310.3311.9309.4303.9300.9296.0295.5289.8277.4

(314.5)35.735.7

+ 8.2-16.4-16.4+25.6-25.6-15.7-16.7+32.1+24.4+21.2+28.5+12.7-211+15.9+10.9+10.1-10.4-13.7+12.2+15.1+ 7.2+42.6+44.7

(-6.2)+ 8.0-16.5-16.5+25.8-25.2-16.9+32.6+21.8+243+10.8+15.8+10.5+ 9.9-9.7-142+12.0+15.1+ 7.6+42.1+44.4

(-6.1)-16.4-16.4

con tinued

Group 16607Group 18608

. Apr. 4Apr. 4

- 13.- 13.

1413613661192

4715721

2286

1374521

210

118113

730

2012612670

74796

9164

1125039

19

9693

775

138138

109806806325898

3241090109

13402620

865274181

1336

514666

70198

11480880428548

219775

256016

765217154

520

515512402020

722722

con tinued

A few small spots on April 4, developing into a large stream.A short stream, led by a regular spot which is the only remainingcomponent on Apri 1 11.

Group 18609Group 18610Group 18611Group 18612Group 18613

Group 18614

Apr. 4. Apr. 5. Apr. 5. Apr. 6

Apr. 6

Apr. 6

- 8.- 9.- 8.- 7.- 12.

A smallA smallA smallOne orA pair

spot.stream,spot.

two tinyof spots

which the group- 11.

of which only the

spots,on April 6 and 7;becomes a stream.

leader remains by April

a single spot on April

8.

8, after

Intermittent. A small spot.

Page 29: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 213

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

Groupto.

1958

UK

REU.Dist.

isures

Pos.Arg.

о

R>si

Long.

0

LtlOn

Lat.

о

Ai

Uib.

•ea

UnieSpots

Apr. 8.384 continued185911860418597185951859818610186001860718608

a1861318605186061860918611186141861518616

Apr. 9.389186041859718595185981861018617186071861818608

a186131860518606186151399c18616

Apr. 10. 350185971859518598186171860718608

a186131860518606

.968

.899

.789

.868

.766

.722

.663

.383

.305

.289

.196

.389

.468

.391

.804

.879

.857

.970

.979

.904

.939

.885

.835

.671

.465

.410

.339

.344

.154

.312

.375

.708

.865

.909

.972

.979

.955

.829

.600

.483

.488

.286

.369

.383

299.02447253.6314.0303.9312.4326.2350.4

13.48.0

135.237.439.555.823.430.4

102.575.6

(-26.3)246.1254.1308.9296.8304.3292. S322.5315.6329.1325.9194.5

1.313.5

103.574.870.5

(-26.3)254.1304.4293.7286.3306.3305.330472349326.3341.3

24718.36.52.5

357.2350.1339.1318.3310.4312.2306.4300.6296.6295.6289.1276.0255.3240.6

(301.2)20.86.32.0

358.4350.1340. 1318.2318.1311.4312.5303.5300.8296.0256.3243.5239.0

(288.6)6.00.5

357.4342.3318.6312.2312.6302.6300.6295.9

+26.0-25.3-16.7+33.0+20.7+24.1+27.8+16.0+11.1+10.4-14.0+12.0+15.3+ 6.9+41.9+44.5-13.8+12.4

(-6.0)-24.6-16.9+33.3+20.3+24.1+10. 1+15.8+11.2+11.0+10.6-145+12.1+15.3-13.8+ 9.9+14.9

(- 5.9)-16.9+31.9+20.5+10.0+15.7+10.7+10.7-15.2+12.0+15.3

711334501481

11635254

8569

0374

26

0447397

210

1482

403415

10162925

330

902

14231308

10543

29863

1885169924

5857213146

9485365

4112119

182

17300567463

127l

92311

22718771

487355

577

57

318107855

2279417817163

434269

continued

U.T.anl

GroupNo.

1958

Apr. 10. 3501861918620186151861618621

Apr. 11. 48018598186171399d186071861818608

a18613186051860618622186191861418620186151861618621

Apr. 12. 561186181860718608

a1861318605186061862218620186151862118623

Apr. 13. 57518618186071860818605186061862418622

Measures

Rad.Diet.

IvS*Arg.

о

Position

Long.

о

Let.

о

Area

U*. »oieSpots

continued.102.572.540.783.950

.991

.944

.892

.768

.750

.674

.674

.493

.534

.509

.449

.256

.756

.392

.328

.663

.832

.887

.894

.831

.831

.677

.705

.654

.566

.289

.159

.671

.978

.973

.972

.941

.839.795.793.726

163.9119.7105.966.992.7

(-26.3)293.3282.7307.3296.2291.3293.5293.5249.4303.7314.6326.3245.3356.5135.6115.561.991.7

(-26.3)286.6290.9287.0287.0253.8293.5301.3306.5170.1154.390.547.7

(-26.2)283.6287.82846288.0294.0308.2295.7

287.0256.5256.4240.9216.7

(273.6)352.6342.5327.9319.1319.0312.5312.5302.0300.5295.6288.6287.3277.2256.5255.9236.8217.3

(259.4)319.5319.4313.2313.2301.6300.6294.6287.3256.3255.3217.3190.6

(246.0)320.8319.8314.2300.4294.6289.4288.2

-11.5-21.4-13.5+13.9- 4.4

(- 5.9)+22.1+ 9.9+29.3+15.7+11.7+11.0+11.0-15.2+11.9+15.4+16.1-11.8+42.8-21.8-13.7+13.5-4.6

(- 5.8)+11.8+15.7+10.6+10.6-15.2+11.9+15.1+14.5-22.3-14.0- 4.6+39.2

(- 5.7)+11.8+15.7+11.7+11.7+15.1+25.2+14.1

42

114

17

141010

1197

3131115944

142

16136

14

106934341

83268

129

175

46113762731

2023

1759192

1442434

68623

20420440

508254

6238

61564468

56455182182

14431136

5046626221

19451124418192

1821

continued

Group 18615. Apr. 8 - 1 3 .

GroupGroupGroupGroupGroupGroupGroupGroupGroup

18616.18617.18618.

18619.18620.18621.18622.

18623.18624.

AprAprAprAprAprAprAprAprApr

899101010111213

- 11- 11- 13- 11- 14- 16- 13- 17- 15

A stream of small spots, of which only the leader remains onApril 13.A few small spots.A pair of. spots on April- 9; a single spot on April 10 and 11.One or two small spots, not seen on April 10.Two or three small spots.A stream of small spots.A small regular spot.Two or three small variable spots.

... A single small spot.- 15. A small stream, developing near the west limb.

Page 30: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 214 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

UT.and

Group

1958

Measures

Rd. RJS.Dist. Ang.

0

Rjsition Area UT

ad

Ung. It. UfcJJ; <£*>

о о 1958

Apr. 13. 575 continued»99e18615186201399 f1399g1399h18621186251862318626

Apr. 14. 61918605186061862418620186271399 i1399J1862118625186231862618628

Apr. 15. 35518605186061862418627186211862518623186261862918628

Apr. 16. 3681399k18627

Group 186 2 5Group 18626

Group 18627Group 18628Group 18629

Group 18630Group 18631

Group 18632Group 18633Group 18634Group 18635Group 18636Group 18637Group 18638Group 18639

.840 327.4

. 278 229. 4

.329 208.7

.302 354.6

.199 353.2

. 275 22. 5

. 478 89. 8

. 539 110. 5

.937 44.0

.951 65.5

(-26.2).939 284.6.896 289.0.896 302.2.452 229.2.359 25LO.372 352.2.208 45.4.255 86.6.358 119.6.887 37.9.876 62.8.991 П0.8

(-26.1).983 282.8.958 286.9.960 299.3. 520 258. 2.086 77.2.201 145.9.832 32.6.820 61.9.986 47.9.963 110.5

(-26.1). 987 284. 4.703 259.9

. Apr. 13

. Apr. 13

. Apr. 14

. Apr. 14

. Apr. 15

. Apr. 16

. Apr. 16

. Apr. 17; Apr. 17. Apr. 17. Apr. 17. Apr. 17. Apr. 18. Apr. 18. Apr. 18

282.4258.6255.8247.7247.4239.9217.5214.5188.8178.1

(232.2)300.0292.9289.1253.8252.4235.2223.7217.5213.4186.5176.1148.6

(222.5)300.3

.293.4291.0253.6217.7215.8186.8172.7150.4147.4

( 209. D287.9253.7

- 16.- 24.

- 18.- 26.- 23.

- 17.- 25.

Measures

fel RJS.Dist. Ang.

о

Ibsiticn Area

La*. Let. Uib. *°fe

о о

Apr. 16. 368 continued+40.4 2 20 18630-15.9 0 4 18621-22.3 6 32 18625+11.7 1 15 18623+ 5.7 1 7 18626+ 9.0 1 4 18629- 4. 9 9 44 18628-15.7 9 41 18631+39.3 3 13+21.2 6 58

Apr. 17. 29718627

(-5.6) 18632+11.6 88 418 18633+14.2 20 121 18634+25.5 15 101 18630-22.3 0 4 18623-11.9 5 34 18626+15.9 0 4 18629+ 2.9 0 5 18628- 4. 5 5 26 18635-15.4 9 43 18636+40. 5 4 27+20. 5 7 52-21.3 7 225 Apr. 18. 363

1862718632

(-5.6) 18633+11.5 37 263 18634+14.4 15 162 18637+26.0 23 175 18638-10.8 19 90 18639- 4. 5 4 14 18626-15.1 7 25 18629+39.9 4 13 18628+19.1 15 57 18631+39.8 12 117 18635-21.2 73 630 18636

(-5.5) Apr. 19. 574+13.2 6 55 18634-11.0 14 99 18637

con tinued

A pair of widely- separated spots.

.

.

.

.

.

.

,

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.•

.

.

345151196767678944878924

850798742606513728536888765934988

948913878742488283647420818605708807930

892662

309.3277.1207.723.955.944.8

111.263.7

(-26.0)261.0265.0293.4312.0293.4

12.444.040.0

113.898.476.2

(-25.9)261.3265.1287.7302.7222.7174.7

3.423.032.5

IIS. 550.596.773.3

(-25.8)294.9236.0

224.6217.7214.5185.5173.1149.9148.0146.2

(196.8)255.2249.8241.0225.2225.0185.1173.9149.5148.2127.4117.5

( 182. 8)254.6248.8241.6224.2204.3181.2180.1172.9148.4148.2146.7128.9116.7

( 166. 8)225.7204.2

(

+ 7.3-4.4-15.4+39.3+17.8+39.3-21.2+21.7

- 5.4)-10.5-7.2+13.2+19.1+ 6.9+39.9+17.6+39.2-21.5-9.8+12.7

2112

2730

1460

2308290

3122

18366

196

117

206129

110718

1076

7916453

207130

12185798

(-5.3)

(

-10.0-6.6+12.7+19.6-25.9-21.6+34.8+17.4+39.2-21.1+22.5-8.6+13.4

-5.2)+19.4-25.8

10221215

3225

19683

54

1514

52393032186

41195130

13473227

319

5581

continued

A cluster of spots, developing into athe leader remains on April 24.A cluster of small spots.A composite spot, developing intoA diminishing regular spot, withand 21.A few small spots.

stream from April 17;

a compact stream.a

A small spot, not seen on April 17

only

few companions on April 20

, developing intoApril 19. Only the follower remains

- 18.- 18.- 21.- 21.- 29.- 22.- 19.- 22.

highly inclined to the equator.A small spot.A few small spots.A few small spots.

on April 25.a stream after

This group is

One or two spots, not seen on April 20.A regular spot, with a number of variable companions.A pair of spots on April 18, developing into a short stream.A tiny spot.A small regular spot, with a distant companion on April 19.

Page 31: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 215

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и,т.arri

GrrxpNo.

1958

Apr.19.57413991186381863918626186281863118629186351863618640

Арг.20.563186341863718639186261862818631186291863618640186411864218643

Арг.21.305186341399т18637186391862618628

Measures

Rei Fbs.Dlst. fag.

continued.379 236.7.365 219.2.679 343.8.393 343.7.416 133.2. 556 34.1

ftsition

Long. Lat.

18631186291863518636186401864118642186431864418645

Apr. 22.3881863718639

.746

.602

.787

.953

20.996.668.894.9

(-25.7)976 290.8797 241.7

329.7319.2161.913.5

.746

.494

.299

.491

.707

.643

.852

.941

.940

.980

8.362.794.180.7

101.780.7

186.0181.1180.2173.4147.9147.2146.8129.8118.194.3

(153.7)228.2204.5181.1173.4148.0146.6146.2117.995.284.683.376.3

-16.9-21.3+35.4+16.9-21.3+22.5+39.1-8.2+13.1-6.3

(- 5.1)+19.0-25.4+35.5+17.1-21.5+23.3+39.1+13.0-6.2+ 6.9-12.8+ 8.0

(-25.6)990949885799598292304483700264520743867

.866946988987

290.0255.8243.5322.2308.2191.7352.8356.5358.4105.6

55.193.679.0

101.879.872.380.2

(143.9)223.2215.9205.2180.5173.3147.5146.1145.7145.3129.1118.195.985.183.874.165.164.5

(-5.1)+18.9-15.1-25.7+35.0+17.2-21.7+12.4+23.6+39.1-9.0+12.7-6.1+ 6.8-12.8+ 7.9+16.6+ 8.7

Area

U*. «ЫеSpots

О 5О 1

21 11560 278

168 13845

151

557

7163

17

1507

277

33576

43108

10348

59

4 6513 7519 9656 344

228 137227 17514 8269 326

4512420

133

О 24О б

17 10115 7074 452

221 13154 22

32 14214 83

630644

13329

187340

27

(-25.5) (129.6) (-5.0).965 244.3 204.8 -26.0 13 68.880 314.2 179.5 +34.6 7 33

continued

U.T.ard

QoupNb.

1958

Apr. 2Z 38813626186281863118629186361399o186401864118642186431864418645

Apr. 23. 368186261399p1399q186281863118629186361399т18646186401864118642

1864318644186451399в1864718648

Apr. 24. 375186261399t18628186311399a18636186461864018641186421864318644186451864718648

Measures

Рл_1 П„гаи. ГОЭ.Bist. Arg.

о

continued. 761 297. 7. 408 223. 1.544 329.8.724 343.1. 358 33. 1.473 51.1. 545 92. 1.711 75.3.732 102.4. 833 75. 5.927 69.8. 933 78. 5

(-25.4).874 293.0.854 300.1.587 297.7.564 237.0.647 315.0.778 332.6.302 358.2.179 118.6.380 155.9.345 89.4.539 69.0. 577 104. 2

.695 71.3

.834 66.1

.835 75.8

.855 97.6

.953 74.0

.984 105.4

(-25.3).969 289.6.952 300.5.723 243.3.772 305.5.356 255.2.384 319.9.349 193.0. 136 94. 5.327 51.7.363 110.9.505 60. 5.694 59.9.693 71.7. 859 72. 1.920 105.7

tt»

Leng.

о

174.2147.0146.8145.2118.1107.596.686.082.775.164.662.1

(116.6)173.8169.5148.5147.2146.3144.0117.2107.5106.896.486.381.975.064.061.857.746.336.2

(103.3)176.4170.2147.4146.2123.6117.9108.295.588.483.176.964.761.746.636.2

Ltion

Let.

о

+17.1-22.0+23.2+38.9+12.5+12.6- 5.3+ 6.8-12.5+ 9.1+16.6+ 8.8

(-4.9)+17.3+22.4+11.7-22.1+22.9+39.2+12.6-9.7-25.0- 4.4+ 6.9-12.1+ 9.1+16.8+ 9.0-9.0+13.6-16.0

(-4.8)+17.6+27.1-22.4+23.1-9.7+12.4-24.5- 5.4+ 7.0-11.9+10.1+16.6+ 8.9+12.7-16.3

л

Uib.

65189248

500

11201351509

4003

226124

56139

19103453403

93

100

125134

4236

186

2747

10

91

tea

«holeSpots

2981662

9860

3148

6216186

27530841

223107

15305316

2905

1140

11964

204297

22

526

526

13111

11663213

2118

186631

181268

814

522

Group 18640.Group 18641.Group 18642.Group 18643.

Group 18644.Group 18645.Group 18646.Group 18647.Group 18648.

Apr. 19 - 26Apr. 20 - 30,Apr. 20 - 27,Apr. 20 -May 2

Apr. 21 -May 3Apr. 21 - 24Apr. 23 - 25Apr. 23 - 24Apr. 23 -May 5

A group of small variable spots.A stream of small spots,A cluster of variable spots, not seen on April 25 and 26.A cluster of variable spots, developing into a stream of normaltype after April 25.A regular spot, with one or two companions until April 27.One or two small spots.A pair of tiny spots.One or two small spots.A regular spot, with a few occasional companions.

Page 32: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 216 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.ecu

No.

19»

Measures

Rsd. Pos.ttst. Aig.

Position Area

Ixjng. Let. Uib.

U.T.end

QrotpNo.

1958

MB8SUTCS

Red. Pos.List. Arg.

Position

Ixng. Let.

Area

Uib. VholeSpots

Арг.25. Э1818628186311863618646186401864118643186441864918648186501865118652

a18653

Apr. 26. 657I399v186281863618640I399w186411399x1864318644186491399y18648186501399 ж1865118652

1865318654

Apr.27. 55418636186411864218643

а

ь

(-25.2).853 246.3.866 302. 5.530 302.4. 440 219. 6. 122 269. 2. 215 5. 1.349 40.8.553 50.4.701 61.2.817 106.6.884 77.0.985 60.0.993 72.7.993 72.7.995 105.8

(-25.0).976 280.5.968 248.0.753 291.2. 409 267. 2. 490 212. 4.365 305.2.281 247.6.285 342.6. 385 22. 6.505 48.0.717 47.6.617 111.2.662 73.0.848 113.2.909 56.1.942 70.2.924 70.0. 975 70. 4.925 106.2.989 104.2

(-24.8).861 287.2.526 292.6. 370 247. 2.397 312.3. 418 307. 2.360 324.6

(90.9)148.5144.4118.0108.797.989.877.564.651.336.530.415.39.79.75.7

(73.2)149.4149.1119.097.390.690.688.578.264.450.437.636.533.716.214.65.58.6

358.55.4

351.1

(61.3)118.490.581.778.681.073.6

(- 4.7)-22.6+25.0+12.2-24.2-4.8+ 7.6+10.7+16.4+16.0-16.2+ 9.1+28.4+16.5+16.5-16.2

С 4.6)+ 9.1-22.4+12.6- 5.3-28.8+ 7.7-10.5+11.1+16.2+15.4+25.1-16.6+ 7.6-22.0+28.0+16.9+16.4+17.9-16.7-14.7

(-4.5)+12.3+ 7.7-12.4+11.1+10.4+12.6

Apr. 27. 554 continued107

245

16

1093460

832

51575724

4147323161

913241

8010

5114590552616

24140

9540

55

10977

2294

4066

508254

4429

19274431431182

458861821611308

63618926

5451

57

188873553320133105

160808

649393256

13990.186441399$186551864818651186561865318652

1865718654

Apr. 28. 44418636186411865818643

18644186551864818659186511865618652

186531865718654

Apr. 29. 3281863618641186601865818643

ab

186441865518648

.271

.361

.373

.506

.457

.833.796.833.867.837.914.953.967

.945

.688

.655

.539

.574

.491

.431

.393

.302

.337

.741

.686

.753

.721

.819

.711

.880

.893

.992

.821

.814

.787

.684

.716

.625

.554

.328

.207

335.8351.341.048.0

117.250.8

118.2107.066.666.667.768.0

104.2

(-24.7)284.7286.5251.0299.3295.4305.7325.0

29.8133.4117.3441

121.662.360.863.9

109.765.1

104.7

(-24.6)283.3283.0238.2252.2291.6289.0296.0308.8356. 8172.6

67.764.546.938.436.414.110.85.34.98.2

358.6352.0345.7

(49.6)118.791.289.578.181.373.664.538.036.431.813.89.85.58.5

359.05.4

352.0346.4

(37.9)119.291.689.489.178.281.272.964.539.036.3

+ 9.7+16.3+11.9+15.5-16.1+28.7-25.0-16.6+17.7+16.7+18.2+19.4-14.8

(-4.4)+12.4+ 7.9-15.7H 1.4+10.5+12.6+16.3+15.5-16.2-13.0+28.5-24.4+17.3+17.3+18.3-17.0+19.4-15.1

(-4.3)+12.5+ 8.1-28.1-16.6+11.2+10.3+12.3+16.4+14.7-16.1

continued

1 333 178

1 43 10

91 44834 205

2 621 122

137 91696 54141 375

0 1548 523

24 1639 561 15

123 67173 42950 24234 173

3 H83 457

3 3044 23613 62

164 104199 64965 39226 129

2 11201 1432

34 2146 234 220 4

88 58658 39830 18835 181

1 585 449

continued

Group 18649. Apr. 25 - 26. A single spot on April 25; several small spots on April 26.Group 18650. Apr. 2 5 - 2 6 . A few tiny scattered spots. ;Group 18651. Apr.25-May 7. A regular spot.Group 18652. Apr.25-May 7. A bi-polar group, of which the follower begins to break up and die

out after May 3.Group 18653. Apr.25-May 7. A small regular spot, with a few occasional companions.Group 18654. Apr.26-May 9. A large elongated stream, of which the rear portion begins to bre^k

up and die out after May 4.Group 18655. Apr. 27 - 30. One or two small spots.Group 18656. Apr.27-May 3. A small spot on April 27, developing into a scattered stream.Group 18657. Apr. 27-28. A tiny spot.Group 18658. Apr. 28 - 29. One or two tiny spots.Group 18659. Apr. 28-30. A few faint spots.Group 18660. Apr. 29-30. A pair of tiny spots.

Page 33: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 217

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

Mesures Fbsition Area IIT Measures Fbsition Area

andGroup Rad. Pos.

No. Dis t. Ang.

1958 о

Apr .29. 328 continuedU99y1865918651186561865318652

18654

Apr.30.31413998186411866018643

18644186551864818661186621399e1865918651186631865618652

1865318654

Мэу 1.31118643

ab

1864418648186611399C,186621866318651186641865618653

.327 167.8. 197 145. 1.649 34.6.560 129.4.568 114.6.640 54.8.593 52.8.708 58.7.787 106.0

(-24.4).977 244.4.932 280.5. 898 238. 6.819 286.8.853 284.8.770 289.6.700 298.7.399 322.2.279 222.3.508 341.2.568 348.8.358 198.3.174 210.3.568 19.2. 364 39. 5.431 144.6.491 41.0.458 37.0. 569 48. 1.404 126.5.630 108.8

(-24.2).926 283.6.949 282.6.889 285.8.831 293.0.448 241.7.574 323.5.401 309.7.585 336.8.288 356.8.531 359.6.449 3.8.351 171.3.255 153.4

Leng.

о

33.631.13.9.5.4.8.

358.346.

(24.103.92.86.77.81.72.64.39.36.35.32.31.30.12.1l.9.5.8.

33637455

9)058766551229073022

358.55.0

346.9

(H.77.81.

7)99

70.264.435.33.29.

859

26.812.11.9.8.4.

69949

о

-22.8 0-13. 5 3+28.3 45-24. 5 14-17.3 29+17.9 154+17. 2 94+18.2 55-15.2 318

(- 4.2)-25.9 0+ 8.2 3-29.9 2+11. 1 70+10.3 43+12. 1 27+16.4 27+14.2 0-16.0 78+24.5 1+29.6 0-24.0 1-12.8 0+28. 2 45+12. 2 6-24. 5 20+17.7 141+17.3 99+18. 5 41-17.8 31-15.0 281

(-4.1)+11.0 79+10. 5 47+12.0 32+16.4 38-16.0 83+23.6 8+10.8 1+28.4 1+12.6 9+27.8 32+22.4 1-24.3 12-17. 2 22

andWhole Group Rad. Fbs.Spots No. Dist. Ang.

1958 оMay 1.311 continued

413

21372

1571101588467

2008

251916

489319170170

4399

В3

123

22437

99844596238152

2061

484339145180467

5987

49185

13101151

18652aЬ

18665186541399r\186661866718668

May 2.31518643

ab

18644186611864818662186631865118664186561865318652

лЬ

18665186541866918666186701866718668

May 3. 57318644186481866118662186631866418651186561865318652

ab

.391 17.5

.371 9.4

.449 30.5

.592 38.0

.455 115.0

.655 59.6

.891 116.0

.963 77.2

.979 63.2

(-24.1).985 282.6.993 282.1.966 284.1.929 289.7.720 309.2.624 249.1.700 321.7.373 321.7.565 339.1.477 336.3.395 208.3.255 205. 1.383 345.3.398 336.3.386 2.2.491 18.1.262 136.5. 737 104. 2.768 119.4.829 85.1.877 75.1.927 60.5

(-23.8).993 287.5. 820 252. 4.856 302.1.830 309.1.578 300.2.621 311.1.671 320.2.564 228.7.440 237.7.518 315.0.547 310.8.458 327.0

Long.

0

4.68.1

357.8348.3346.6335.9309.9298.8297.0

(358.4)77.280.371.864.135.835.628.312.111.510.310.24.94.28.0

357.5348.8347.7311.4311.1302.9299.0295.4

(341.8)63.336.234.629.012.611.710.69.64.64.37.4

357.0continued

Group 18661Group 18662Group 18663Group 18664Group 18665

. Apr. 30 -May 5.Apr. 30 -May 4.Apr. 30 -May 3.

. May 1 -

. May 1 -3.8.

Let.

о

+17.7+17.3+18.7+24.0-14.8+16.0-25.0+11.1+25.1

(-4.0)+11.7+11.4+12.5+16.6+23.8-16.0+29.7+13.1+27.8+21.9-24. 1-17.2+17.7+17.3+18.6+23.8-14.8-13.1-24.8+ 1.8+11.0+25.3

(- 3.9)+16.9-16.6+24.7+28.9+13.5+20.7+27.5-25.2-17.2+17.8+17.3+18.7

IM

16812048

4301

11

49115

270

27317

96138

3556

341771176027

201122

40176

16999

2333

344

251299732

. «hole

919654265

381857

68

253665

1899495

24033

3977347

1994022

145804555249144

140284

12217760

175504

51178

1520

17631

121683534149

continued

A few scattered spots.A few variable spots.A group of variableA few smallA cluster of

spots.small

spots.

spots on May 1, developing into a stream,which the leader becomes a regular spot after May

Group 18666Group 18667

Group 18668Group 18669Group 18670

. May 1 -

. May 1 -

. May 1 -

. May 2 -

. May 2 -

2 ,12.

13.3.

12.

A tiny spot.A stream, led by ato break up

large regularafter May 4 and the

spot. The

4.of

rear component beginsleader alone remains from May 7.

A regular spot.Single smallA small spotis dying out

spotson Mayas it

in the same area.2. developing into a stream. The whole group

approaches the limb.

Page 34: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 218 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.aid

GroupNa.

1958

Measures

Had. Fbs.Dist. Ang.

0

Position Area

Long.

0

т . ... WeleLat. Uib. 3рЛя

0

May 3.573 continued1866518654186711866918672186701866718668

.486 344.0

.213 206.3

.341 18.8

.581 111.2

.725 47.0

. 629 82. 8

.716 70.6

. 823 54. 6

Мву 4.563 (-23.6)186611864818662186511865318652

ab

1867318665186541400a18671186721867018667186681400Ь1867418475

.951 295.8

.923 253.4

.940 302.0

.774 310.4

.613 246.6

.658 302.4

. 692 300. 2

.585 310.5

.614 231.2

.573 323.3

.382 239.8

. 237 240. 2

.342 352.8

. 598 33. 2

.444 78.2

.551 63.4

.710 46.0

. 768 54. 4

.945 64.4

.964 73.0

»V 5. 557 (-23.4)18648186611400с1865118652

аb

1865318673186651865418671186721867018667

GroupGroup

.981 253.7

.987 294.1

.871 285.6

.873 304.4

.801 295.8

.821 294.6

.729 301.3

.765 250.6

.755 237.8

.702 309.6

. $69 2SO. 0

.450 317.2

.515 12.8

.252 68.5

.381 49.4

18671. May. 318672. May 3

Group 18673. May 4GroupGroupGroupGroupGroup

18674. May 418675. May 418676. May 518677. May 618678. May 7

350.347.335.307.305.303.298.293.

(328.37.35.33.10.4.4.7.

356.0.

350.348.340.331.307.303.298.294.285.261.256.

(315.34.33.14.9.4.7.

356.4.0.

351.348.334.308.302.298.

- 5.- 10.

- 7.- 6.- 16.- 7.- 13.- 12.

24386358

7)09316236666723071951

6)863670848690316

+23.8 43 284-14.8 323 1620+14.9 3 14-15.3 0 3+26. 4 4 10+ 1.4 20 100+10.8 32 216+25.8 154 872

(- 3.8)+23.0 0 53-16.8 102 503+28. 2 20 109+27.2 41 213-17. 1 32 160+17.5 114 692+17.3 102 562+18.9 12 130-25. 7 6 36+23.8 48 287-14.6 171 1370-10.4 0 11+16.0 0 17+26.4 0 21+ 1.8 30 145+11.0 46 212+26.3 141 808+23.7 2 18+22. 6 0 17+15.2 37 215

(-3.7)-16.7 45 436+23.0 0 33+11.6 2 30+27.3 35 188+17.9 94 784+17.6 79 672+19.4 15 112-17.2 35 147-26.2 31 154+23.5 63 356-14.2 186 1319+15.7 4 19+26.4 2 17+ 1.7 19 103+10.7 38 224

continuée/

A few scattered spots.A few scattered spotsand the group becomesthe limb.A short stream.A few tiny spots.A regular spot, with aA small spot.

U.T.and

GroupNo.

1958

Measures

Rod. Pos.Dist. Ang.

0

Position

Long.

0

Lat

0

Area

Uifa.WholeSpots

May 5.557 ï continued18668186741867518676

May 6.6641865118652

ab

186531867318665186541867218670186671866818677186741867518676

My 7.6031865118652

ab

186531867318665186541867218670186671866818677186751867618678

Mqy 8. 57118665186541867218670

.600 34.2

.861 61.0

.886 71.0

.976 111.6

(-23.2).953 300.4.916 291.8.932 290.6.877 295.4. 895 252. 5.894 242.6.850 301.0.764 254.0.458 348.2.100 343.0.251 10.8. 506 14. 2.465 52.2.730 54.6.757 67.6.908 113.0

(-23.0).991 298.3.979 289.3.985 288.8.958 291.2.965 253.2.959 244.0.931 297.1.897 255.8.527 327.4.270 289.9.293 325.9.490 352.7.323 27.3.612 61.0.814 115.6.947 93.7

(-22.8).990 294.5.971 256.3.641 314.2. 469 280. 6

293.6261.2256.2238.0

(300.9)8.74.37.0

358.34.02.7

353.5350.1306.7302.5298.2293.0278.8261.1254.9236.5

(288.5)7.84.76.6

359.33.41.6

353.0352.1306.4303.1298.1292.4279.8255.1236.0217.3

(275.7)354.9351.9305.6303.0

+26.+22.+13.-21.

(-3.+27.+18.+17.+20.-17.-26.+23.-14.+23.+ 1.+10.+25.+13.+22.+14.-22.

(-3.+27.+18.+17.+19.-17.-25.+23.-14.+22.+ 1.+10.+25.+13.+14.-22.-4.

(- 3.+23.-14.+23.+ 1.

2578

6)5372208509671223

5)5181196298551376

4)6159

1382

480

2351429

262268

132102330

11930

364

2554459

269

75145233533

1541

472

11

0742627

6239

24120

111447388

5910194

30781443

115323620

152

219• 13

15548344340

14944

458717166141198712

14251

942

258865139168

continuée/

until May 6, after which fresh activity occursa short stream which dies out

number of

before reaching

variable companions.

Intermittent. A group of variable spots.One or two small spots , not seen on May 11.

Page 35: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 219

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

jjT Msasures

èníQroup Rad. Язе.

No. Di st. Ang.

1958 о

Position Area ц т

exiТ mer Т et1 î hh ""Ol® Group

Spots No.

о о 1958

MV 8. 571 continued18667186681867918675186781868018681

Mv 9. 32718654186721867018667186681400d186791867518682186787400e186801868118683

Mv 10. 33618672186701866718668186771867918675186821868418678186801868118683

MV H. SSO1867018667186681867718679

Group 18679

Group 18680

Group 18681

Group 18682

.442 303.2

.559 331.2

.292 47.6

.465 49.9

.850 92.7

.957 96.2

.990 105.7

(-22.6).992 255.6.733 306.2.612 277.4.573 294.0.626 319.9.583 340.4.191 9.4.347 31.4.424 28.1.743 92.6.771 74.1.889 96.4.967 106.6.996 109.1

(-22.4).848 300.2.789 275.0.734 287.8.751 309.2.537 301.0.258 317.0.295 351.0.369 358.6.530 109.8.570 92.9.742 97.7.889 108.1.958 110.2

(-22.1).920 273.1.887 283.7.878 302.1.754 289.9.494 293.1

. May 8

. May 8

. May 8

297.7293.1263.2254.3217.6202.5193.5

(265.7)348.9305.6302.9297.7292.1278.7263.9255.0253.6217.8217.0203.0190.5182.4

(252.4)305.1304.0297.6292.5280.5262.6255.1252.9221.7217.7204.7190.2179.4

(236.3)302.9297.4292.0282.7263.5

- 15.

- 17.

- 21.

Mv H. 550+10.8 29 182 18675+26.0 128 612 18684+ 8.0 15 57 1400t+14.2 52 235 18680- 4.0 5 24 18681-6.9 20 164 18683-16.0 59 242 18685

(-3.3) Mvl2.310-14.7 8 122 18670+23.1 12 80 18667+ 1.8 13 96 18668+10.7 33 171 18677+25.5 110 567 18679+29.9 6 24 18675+ 7.5 23 117 18686+13.9 39 205 18684+18.7 6 15 18678-4.2 7 17 18680+10.0 2 9 18681-7.2 25 146 18683-16.9 72 516 18685-18.7 0 144 1400g

18687

(-3.2)+23.3 6 35 MV 13.485+ 1.9 16 86 18668+10.7 20 166 18677+25.8 98 528 18679+13.2 10 48 18675+ 7.7 28 185 18686+13.7 35 192 18680+18.4 2 10 18681-13.1 4 25 18683-4.3 1 5 18687-7.9 36 189 18688-17. 5 63 580^20.3 31 517

Mv 14.45518679

(-3.0) 18675+ 1.7 14 92 18686+10.7 32 192 18680+26.1 93 668 18681+12.8 8 56 18683+ 8. 5 25 154 18687

continued 18688

Measures

Red. Fbs.Dist. A«.

о

Fbsiticn Area

Lcng. Lat. lia). s> *«.

0 0

continued.429.284.554.517.733.856.960

.996

.953

.940

.821

.629

.554

.414

.188

.170

.350

.610

.765

.897

.907

.984

.992

.968

.822

.736

.642

.105

.415

.602

.913

.984

.924

.858

.797

.196

.277

.447

.814

.908

A short stream, appearing just east ofbreaking up as it approaches theA stream, developing from a pairthe rear components begin to dieA stream, led by a regular spot.

limb.

312.6131.861.7

100.2111.5112.278.9

(-21.9)272.6282.3299.7287.3287.5301.1253.6171.5105.1103.7114.8114.577.4

113.5113.2

(-21.6)297.0284.4281.6291.8260.6139.8128.0121.4114.396.4

(-21.3)279.3287.7262.1250.5155.9132.7116.996.3

255.2223.8206.5205.5190.8178.8163.7

(226.3)301.0297.4291.9279.5263.5255.4249.9224.7216.9206.3191.0178.5163.8159.0146.3

(210.7)291.1284.8264.9255.2250.3206.8190.8177.6146.0130.9

(197.9)264.5254.9250.5208.6191.1177.5145.9132.8

the central

of spots onout.The

May 8.

rear portion

+14.0-13.8+12.5-7.8-17.6-20.4+ 9.7

(-3.0)+ 1.7+10.7+26.5+12.3+ 8.5+13.9-9.4-13.7- 5.5-7.5-17.3^20.5+ 9.9-25.9-23.4

(- 2.8)+26.4+13.2+ 7.9+13.8-8.2-7.4-17.3-20.5-23.3-6.8

(- 2.7)+ 7.5+13.7-7.9-6.4-17.2-20.1-23.3- 6.8

meridian,

4143

2667564

026

1132

4240

111

305948

22

38

530

2237112040493049

4442121234225167

After May

coalesces

2281716

171428403

25

10163589

20225227

1078

173322343

1617

255

52314

2302296390

325364246244

2202043949

273226237419

13

afterMay 17 into a small composite spot.

. May 9Group 18683.. May 9Group 18684Group 18685Group 18686Group 18687Group 18688

. May 10

. May 11

. May 12

. May 12

. May 13

- 10.- 21.- 12.- 12.- 15.- 24.- 24.

A pair of tiny spots.A cluster of variable spots.A few small spots.A small spot.A small stream.A stable regular spot.A pair of regular spots, of which only the leader remains onMay 24.

Page 36: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 220 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

GroupNo.

Msasures

Rad. PCS.Dist. Ang.

Position

Long. Lat.

Area

Uib. «holeSpots

U.T.and

GroupNo.

Measures

Rod. Pos.Dist. Ang.

Position

Lmg. Lat. Uib.

Area

flholeSpots

1958

toy 15.366186791867518686186801868118683186871868818689

My 16. 3271867518680186811869018683186871868818689

toy 17.3971868018681186901868318687186881868918691

MV 18. 5661400h186811868318687186921868818693186891400 i18691

Msy 19.6111868118683

0

(-21.1).979 277.8.945 285.5.913 263.1.388 259.4.272 199.0.338 157.8.698 121.6.808 96.3.979 48.1

(-20.8).993 284.4.590 261.8.397 227.8.267 217.6.326 194.6. 564 130. 4.649 97.4.926 44.6

(-20.5).780 263.7.589 242.7.449 243.1.443 225.1.431 148.3.455 99.7.855 38.7.978 67.3

(-20.1).900 262.3.771 248.5.625 240.1.371 181.4.480 12.9.215 109.8. 543 132. 1.769 29.3.771 76.4.905 64.5

(-19.8).898 251.2.769 246.6

о

(185.9)263.5255.3251.7208.4191.2178.1145.7132.2113.7

(173.1)255.2209.0191.0182.7178.1145.3132.9115.4

(159.0)210.1192.2183.2178.5144.7132.3114.983.2

(143.5)207.5192.2178.5144.1136.7131.8117.8114.2

94.382.0

(129.7)192.7177.8

о

(- 2.6)+ 7.1+13.7- 7.4-6.5-17.5-20.7-23.4- 6.6+40.1

(-2.5)+14.0-6.8-17.8-14.6-20.8-23.6- 6.7+39.9

(- 2.4)- 6.4-17.6-13.8-20.4-23.8-6.5+40.0+21.6

(-2.2)- 7.9-17.9-19.9-23.9+25.6-6.3-23.2+40.0+ 9.0+21.9

(- 2.1)-17.8-19.1

1958 0 0 0

MV 19. 611 continued17270

13334552880

203

394

37508142

349

33250577952

0612045

565

583

250

805

120169

1540

252291234421

22

13021

22817

297241401310

1221631

201221333434385

10458108225

22397

23589

11333

46623

18694186871869218688186931400 j186891869118695

MV 20. 4071868118683186941868718692186881869318689186911869518696

MV 2 1.37918681186831869418687186921868818693186891400k186971869114001186951869618698

MV 22. 4571868718692186881869318689

.753 297.4

.434 210.4

.469 345.8

.092 209.4

.401 154.2

.487 31.6

.706 18.2

.800 60.7

.946 70.0

(-19.6).961 252.3.871 248.6.862 292.9.536 225.0.526 329.6.230 248.8.367 181.8.682 7.3.702 56.0.878 68.0.996 105.6

(-19.3).994 251.8.956 249.7.946 290.1.673 235.1.637 314.5.435 258.5.432 210.5.679 355.1.300 152.6.282 48.2.573 45.9.620 58.7.759 64.3.958 105.7.966 80.0

(-19.0).808 241.5.779 304.0.654 261.6.575 229.0.703 342.5

174.4143.5137.0132.3118.8113.7113.081.360.7

(119.2)192.8178.3175.8143.6136.2131.6119.9112.780.660.534.3

(106.3)190.0178.6175.4143.4136.2131.6120.1110.798.094.180.172.860.633.332.1

(92.1)142.8137.1132.6120.3108.1

+18.7-24.0+24.8- 6.7-23.1+22.4+39.9+21.6+18.1

(- 2.0)-17.6-19.5+18.4-24.0+25.0-6.7-23.4+40.4+21.5+18.1-15.7

(- 1.9)-18.3-19.9+18.2-24.1+24.8-6.7-23.6+40.5-17.3+ 8.9+21.7+17.2+17.8-15.6+ 9.1

(- 1.8)-23.8+24.5- 6.8-23.7+40.2

continued

741485071

986414

7255

584643

395751111

273

11495442

3630

1656

38

4340

5231313

40

502422582714917

601329108

4154633

253236239

16620407

52122

2385059

258298224

13401

381

3841550

215268

253193204

13274

continued

Group 18689. May 15 - 26.

Group 18690.Group 18691.Group 18692.Group 18693.

Group 18694.Group 18695.Group 18696.Group 18697.

May 16May 17May 18May 18

17.29.24.26.

May 19 - 21.May 19 - 23.May 20.June 1.May 21 - 28.

Group 18698. May 21-June 1.

A stream, of which the leader, a composite spot, begins to break upfrom May 21. Only the follower remains on May 25 and 26.A few tiny spots.A composite spot, which becomes regular in outline after May 24.A short-lived stream, of which only the leader remains on May 24.Оле or two small spots until May 22, after which the group developsinto a stream.A few small spots.A small spot.A stable regular spot.A few spots, appearing just east of the central meridian. After abrief maximum, the group is dying out as it reaches the limb.A regular spot.

Page 37: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 221

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

Group№.

1958

Мфг 22. 457186971400a186911869918695187001869618698

My 23.43518687186921868818693186891869718691186991869518700187011869618698187021870318704

May 24. 555186871869218688186931870518689186971870618699186911870018701186961869818702187071870318704

Measures

Rad. R».Bist. Ang.

0

continued.196 349.2.213 171.9.451 27.8.308 127.6.599 56.8.615 119.4.864 107.0.874 78.4

(-18.6).910 244.1.893 298.2.818 262.6.721 237.0.751 333.2.317 307.2.403 1.2.186 175.8.446 43.2.446 134.4.520 74,4.744 109.7.746 76.0.968 67.1.982 108.4.997 103.6

(-18.3).980 245.7.975 294.3.954 262.4.842 242.5.812 249.3.818 325.1.515 290.7.543 212.2.312 233.8.465 331.4.320 162.3. 292 60. 5.569 115.9.558 70.8.874 64.6.953 63.2.948 108.0.949 103.8

Reition

ta*

0

94.290.379.177.760.557.733.332.2

(79.1)142.7138.9133.7120.5105.493.978.678.360.559.449.032.632.1

5.80.3

353.7

(64.3)142.1139.4136.6118.7116.9102.493.483.579.178.258.449.532.332.26.7

354.8353.5353.1

Let.

0

+ 9.3-13.9+21.7-12.5+17.6-19.0-15.5+ 9.2

(- 1.7)-24.1+24.1-7.0-24.3+40.4+ 9.4+22.0-12.4+17.3-19.8+ 6.5-15.7+ 9.2+21.6-18.4-13.7

(- 1.5)-24.1+23.3- 7.7-23.7-17.5+40.8+ 9.1-28.7-12.0+22.6-19.1+ 6.8-15.8+ 9.3+21.2+24.9-17.5-13.5

Area

Uib.

630

50643

3453

5115331227644320303

48532200

39111864

29

527

13280

222843233

3787

flholeSpots

2564

282241911

221265

24213215369

16436022188124

102072639023

360

24666

108266

1574

3333258

1473

1141742309841

220446

U.T.and

Group№.

1958

My 25.57818693187051868918697187061869918691187011869818696187081400n18702187071870318704

May 26.637186931868918697187061869918691187011400o18698186961400p18708187021400g18707187031870418709

May 27. 55618697186991869118701186981869618708

Measures

Rad.Dist.

.941

.923

.882

.688

.665

.509

.585

.147

.367

.398

.614

.705

.747

.870

.850

.854

.982

.942

.841

.781

.687

.725

.267

.432

.197

.262

.526

.462

.587

.583

.753

.707

.718

.981

R)s.A«.

0

(-17.245.251.319.285.224.248.313.

10.60.

128.53.64.59.60.

109.105.

(-17.246.314.283.231.252.303.302.354.

25.160.

9)3936147071197251

6)8600842786

14Л438.51.

113.54.

113.107.104.

4476628

(-17.3).938.825.839.454.217.273.366

280.255.298.289.324.205.

14.

2515538

Fbsiticn

Long.

о

(50.119.117.100.92.82.79.77.49.32.31.19.9.7.

354.354.353.

(36.115.98.92.81.78.77.49.39.31.31.19.19.7.3.

354.354.352.318.

(24.93.79.77.50.31.31.18.

8)4228869309332500

8)299396938621654224

6)6361959

Lat.

0

(- 1.4)-23.6-17.2+40.9+ 9.6-29.6-12.0+22.5+ 6.9+ 9.0-15.4+20.4+16.3+21.1+24.8-17.2-13.6

(- 1.3)-23.0+40.7+10.2-30.3-12.7+22.5+ 6.9+24.1+ 8.9-15.5-28.0+19.9+20.3-14.5+24.8-17.3-13.2-14.7

(- 1.2)+ 9.1-12.6+22.5+ 7.6+ 9.0-15.4+19.4

Area

Uib.

4932

359

1625264828

11

167

3067

00

202

1617120

392833

1104

406445

1723238

37250

WholeSpots

3861415

2524373

105169225155

910

10130

195432

4116

1269

119114789

258143

1512643

16203404202

11710110247

215127

5continued

Group 18699. May 22 - 29.

Group 18700.Group 18701.

May 22 - 24.May 23 - 29.

Group 18702. May 23-June 1.

Group 18703. May 23-June 3.

Group 18704.Group 18705.Group 18706.Group 18707.Group 18708.Group 18709.

May 23-June 5.May 24 - 25.May 24 - 26.May 24 - 31.May 25 - 27.May 26-June 7.

A single spot on May 22, developing into a short stream of whichonly the leader remains on May 28.A tiny spot.A pair of small spots on May 23, developing into a stream, of whichonly the follower remains on May 29.A small regular spot, with one or two variable companions. A smallfollowing spot is seen on May 30 and 31.A small composite spot, with one or two preceding companions. Thelatter have disappeared by May 31.A composite spot, with a few scattered companions.A small spot.A pair of spots oh May 24 and 25; a single spot on May 26.Intermittent. One or two small spots, not seen on May 29.A few tiny spots.A regular spot, with a few occasional companions.

Page 38: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 222 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

пт Measures Position Areaand

Group Rad. Pos. HholeNo. Dist. Ang. b**' "*• "*' Spots

1958 o o o

May 27. 556 continuée/1870218710187071870318704187111870918712

.461 37.5 7.3

.422 49.3 5.4

.644 46.8 353.5

.571 120.1 353.5

.568 111.8 351.4

.830 128.5 335.0

.930 105.5 316.8

.975 63.4 309.8

Mîy28.340 (-17.0) (14.2)18697186991869118713187011400r1869818696187021400a187071870318704187141871518711187091871218716

.980 279.0 92.2

.924 257.2 81.2

.916 295.2 77.7

.777 297.3 61.3

.606 284.6 50.3

.558 324.6 35.2

.351 299.8 32.1

.380 229.4 31.5

.369 14.0 8.8

.427 44.4 356.1

.537 36.0 354.0

.437 131.0 354.0

.423 119.5 352.1

.549 120.4 344.6

.669 44.2 342.6

.756 132.8 333.7

.844 107.0 317.8

.930 61.8 309.1

.976 78.0 297.5

May 29. 090 (-16.7) (4.3)186991869118713187011869818696187021871018703187041871418715187111870918712

GroupGroupGroupGroupGroupGroupGroupGroupGroupGroupGroupGroup

.977 257.7 81.7

.966 293.8 77.3

.865 294.1 61:3

.725 282.6 49.8

.495 290.5 32.2

.509 240.5 31.5

.359 347.7 8.9

.243 347.1 7.5

.331 149.5 354.2

.295 134.8 352.0

.430 130.9 344.5

.586 34. 5 342.3

.684 138.7 332.4

.747 109.3 317.6

.869 59.3 308.5

18710. May 27 -June 1.18711. May 27 -June 3.18712. May 27 -June 8.18713. May 28 - 29.18714. May 28 - 31.18715. May 28 -June 6.18716. May 28 - 31.18717. May 29 -June 1.18718. May 29 -June 10.18719. May 30 -June 6.18720. May 30 -June 7.18721. May 31 -June 1.

+20. 2 13 74+14.8 1 6+25.0 1 12-17.6 35 207-13. 1 49 342-31.8 6 33-14.8 39 229+25. 5 66 365

(- 1.1)+ 8. 6 5 34-12.2 9 50+22.4 14 90+20. 1 0 6+ 7.9 3 13+25.9 2 15+ 9.0 29 223-15.3 25 115+19.8 11 71+16.7 0 3+24.6 3 20-17.6 28 202-12.9 53 290-17.0 6 56+27.6 5 38-31.7 7 30-14.8 30 198+25.6 72 386+11.5 11 77

(- 1.0)-12. 2 0 14+22.6 11 61+20. 1 2 13+ 8.4 1 11+ 9.1 . 25 181-15.4 15 105+19.4 7 30+12.7 3 19-17. 5 22 149-12.9 31 237-17.2 4 50+27.8 13 66-31.7 6 24-15.0 26 140+25.7 48 264

continued

U.T.and

GroupNo.

1958May 29. 090

18717187161400t18718

My 30. 38118698186961870218710187071870318704187141871518711187191401a187091871218717187161871818720

My 31.32918698186961872118702187101870718703187041871418715187111871918709187121871718716187181401b187201401с

A group of small variable spotsA few small spots.A regular spot, withA tiny spot.A group of scatteredA few small spots onA small spot.

Measures

Rad. Pos.Dist. Ang.

о

Position

Lcng. Let.

0 0

Area

Spots

continued.905.925.944.991

.723

.721

.474

.392

.427

.298

.224

.274

.490

.539

.424

.541

.540

.723

.747

.778

.923

.946

.853

.849..581.614.552.512.417.356.332.499.503.369.373.602.600.630.840.811.872.978

, not

some occasional

spots.

69.77.

105.63.

(-16.283.249.322.316.345.201.200.172.10.

159.39.40.

116.52.64.74.61.

112.

(-15.281.252.292.305.301.321.

3019

2)648626601862948166

9)337605

226.5233.211.345.180.15.

130.43.58.70.58.96.

115.68.

seen

2552157339119

on

301.5297.6294.2283.6

(347.2)" 32.4

31.45.03.4

354.0353.7351.8344.9341.6334.7330.7324.9317.4308.0302. Í297.5283.2277.5

(334.7)32.431.47.86.74.1

354.9353.1351.6345.1342.8334.8328.9317.7307.5302.4297.6282.2280.8276.5258.1

May 28

+18.+11.-14.+25.

(-0.+ 9.-15.+21.+15.+23.-16.-12.-16.+27.-31.+18.+23.-14.+25.+17.+11.+25.-21.

(-0.+ 9.-15.+Í2.

.+20.+15.+22.-17.-12.-17.+28.-30.+20.-14.+25.+17.+11.+25.

2657

8)223758949126859876

7)32328939108161772

- 5.3-22.+20.

04

280

40

30241544

28578

59330

355334

7811

262237

156

13473

7731

285441

75070

17426

264

184135983818

16128546

3236

104

180353

1714

41667

1591122028

1211592

22711

36455

167280

176

3614

2333

companions .

May 28, developing into a stream.

Оле or two small spots.A regular spot, with preceding companions on June 9 and 10.A cluster of variable spots.A few small variableA pair of tiny spots,

spots.

Page 39: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 223

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T. Measuresand

Group Rad. Pos.to. DLst. Ang.

1958 о

June 1.642 (-15.4)18698 .971 279.818696 .966 254.318721 .805 286. Э18702 .816 293.618710 .755 291.018703 .630 243.018704 .592 248.618715 .608 323.218711 .557 207.018719 .386 327.018709 . 244 182. 218712 .467 22.418717 .389 36.0MOW . 585 36. 818718 .684 50.818720 .715 121.2

June 2. 335 ' (-15.2)18703 .735 247.218704 .701 251.818715 .682 315.618711 .631 217.518719 .485 312.018709 .297 214.018712 .429 5.618718 .598 43.718720 . 620 127. 3

June 3.474 (-14.7)18703 .880 251.718704 .854 255.618715 .807 307.118711 .773 230.318719 .668 296.618722 . 578 239. 318709 . 479 239. 518712 .462 336.818723 .327 339.91401e . 260 181. 118718 .479 24.318720 . 445 143. 41401 f .646 63.018724 .680 72.51401g .951 106.118725 .946 113.918726 . 989 61. 8

Group 18722. June 3Group 18723. June 3

Group 18724. June 3Group 18725. June 3

Group 187 26-. June 3

Group 18727. June 4Group 18728. June 4

Group 18729. June 4

Position Area U<T_ Msasures Position Area

ь-* i* «x *Й »-P »J gj. ^ «. ц*. JM.

о о 1938 o o o

(317.3) (-0.6) June4.665 (-14.3) ( 277. 3) ( - 0. 2)32.9 +9.3 23 164 18704 .961 256.5 350.6 -13.0 41 28931.7 -15.3 17 125 18715 .913 301.9 339.2 +28.8 89 7649.5 +12.7 2 8 18719 .834 290.3 331.8 +16.7 33 2279 . 2 + 1 8 . 7 0 6 1401h .868 226.7 329.0 -36.6 0 184.1 +15.2 5 23 18722 .767 248.3 325.1 -16.6 2 5

353.1 -17.0 10 67 18709 .684 249.3 318.4 -14.1 34 179351.6 -12.9 45 240 18712 .589 316.8 303.6 +25.1 38 237341.7 +28.5 96 583 18723 .462 309.1 299.2 +16.7 56 284334.2 -30.2 1 15 18718 .435 354.9 279.7 +25.4 74 338330.0 +18.2 18 131 18727 .170 351.2 2 7 8 . 8 + 9 . 4 6 44317.9 -14.7 31 177 18720 .380 177.1 276.1 -22.4 1 12306.0 +24.9 58 286 18724 .445 63.1 253.5 +П.4 0 5303.5 +17.6 3 12 18725 .844 116.9 222.9 ~22. 5 22 90294.2 +27.3 1 9 18728 .941 43.1 215.5 +43.2 19 72281.6 +25.0 75 335 18726 .952 60.1 208.0 +28.2 193 1520276.2 -22.1 6 40 18729 .984 107.3 198.3 -17.0 33 368

( 308. 1) (-0.5) June 5. 298 ( -14. 0) ( 268. 9) ( - 0. 1)353.0 -16.9 7 45 18704 .991 256.6 350.8 ~13. 3 25 249351.0 -12.9 34 224 18715 .952 300.1 338.1 +28.4 62 436340.9 +28.7 114 728 18719 .897 287.8 331.3 +15.8 62 330334.4 -30.4 1 12 18722 .844 249.9 324.6 -16.9 0 5330.3 +18.4 13 92 18709 .778 251.8 ЗШ.З -14.1 29 132317.9 -14.7 38 195 18712 .669 309.8 303.4 +25.2 29 213305.5 +24.6 59 277 18723 .564 301.0 299.1 +16.7 63 367281.1 +25.1 74 350 18718 .463 339.4 279.3 +2$. ï 68 330276.0 -22.4 7 60 18727 .243 315.0 278.9 +9.7 11 71

18720 .386 200.8 277.3 ~21.2 6 3914011 .171 0.0 268.9 +9.7 1 13

(293.0) (-0.4) 18725 .760 120.2 223'. 8 -22.5 14 96353.2 -16.2 2 9 18728 .898 40.2 216.5 +43.1 66 401350.7 -12.5 44 254 18726 .908 58.4 207.7 +28.3 205 1874340.1 +28.8 102 686 18729 .950 108.2 198.2 -17.3 47 314336.1 -29.7 0 5331.5 +17.0 6 52324.3 -17.5 4 25 June 6. 399 (-13.6) (254.4) ( 0.0)318.1 -14.4 23 174 18715 .989 300.6 334.2 +30.2 16 134304.5 +24.6 41 256 18719 .977 285.8 331.4 +15.4 17 135299.7 +17.4 0 3 18722 .939 251.5 323.1 -17.3 7 72293.3 -15.4 1 5 18709 .908 254.4 318.6 -14.1 25 140280.4 +25.4 69 377 18712 .805 302.8 303.0 +25.8 25 173275.7 -21.2 4 18 18723 .743 292.6 299.9 +16.6 39 321256.2 +16.7 7 27 18727 .439 292.8 278.5 +9.7 10 62251.7 +11.5 1 17 18718 .570 319.5 278.5 +25.6 71 328225.4 -15.4 0 8 18720 .506 224.8 276.8 -21.0 3 20223.6 -22.6 20 128 18725 .601 130.0 224.6 -22.6 17 92213.0 +27.8 37 362 continued

- 6. A small spot.- 8. A tiny spot on June 3, developing rapidly into a stream, of which

the leader is a regular spot. The follower is dying out as thegroup approaches the limb.

- 4. A few tiny spots.- 13. A variable group, of which the only stable component, a regular

spot, is the sole survivor at the west limb.- 17. A large complex stream, which begins to break up and die out as it

approaches the limb.- 6. Variable spots.- 16. A few small spots on June 4, in high northern latitude, developing

into a long stream. The group is dying out as it approaches thelimb.

- 13. A cluster of variable spots.

Page 40: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 224 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

Group№.

1958

Nfeasures

Red. RJS.DLst. Ang.

о

Rjsition Area

La«. Let. Uib. *°ie

spots

0 0

June 6. 399 continued187281872618729

June 7. 56418709187121872318718187201401]18725187281872618730187291401k

June 8. 5621871218723187311871818725187281872618730187291873218733

June 9. 318187311871814011187251872818726187301872918732187331873418735

Group 18730Group 18731Group 18732Group 18733Group 18734Group 18735Group 18736Group 18737Group 18738Group 18739

Group 18740

.825 33.6

.798 53.2

.852 110.4

(-13.1).986 255.5.916 298.7.889 288.5.714 307.1. 678 237. 3.512 289.9.429 149.9.757 24.2.666 44.3.644 64.5.683 116.1.948 77.2

(-12.7).979 297.1.966 287.0.908 277.7.827 301.3. 379 179. 9.711 15.1. 547 30. 2.459 54.8.522 124.8.771 110.9.877 73.7

(-12.4).977 276.6.911 298.0.873 290.6.415 204.9.687 5.9.487 15. 8. 338 39. 3.403 139.0.644 116.2.764 71.8.902 104.0.985 114.8

June 7June 8June 8June 8June 9June 9

. June 10June 10

. June 11

. June 12

. June 12

215..7207.9197.9

(238.9)318.7302.2300.2277.9276.6268.1225.6213.6207.1201.8199.1168.1

(225.7)302.5299.9290.5277.1225.6211.0207.6202.9199.2177.4165.6

(215.7)293.1278.4276.3226.5210.2207.1202.9199.7178.9167.5152.3137.1

- 13.- 9.- 15.- 13.- 10.- 14.- 16.- 11.- 15.- 23.

+43. 2 80+28. 5 239-17.2 32

(+0.1)-14. 3 20+26.1 28+16.4 45+25. 5 68-21.2 1+10. 1 0-21.6 22+43.6 65+28.4 236+16. 1 6-17.3 23+12.2 0

(+0.2)+26.6 22+16. 4 48+ 7.0 2+25. 5 78-22.0 36+43.3 129+28. 3 329+15.4 5-17. 1 20-15.8 7+14.4 2

(+0.3)+ 6. 5 10+25.4 73+20.7 2-21.7 31+43.2 133+28. 2 313+15.4 3-17.3 16-16.2 7+13.9 2-12. 5 6-24.3 6

A few small

5952114

174

108155339337

64

102522

221034

1048

170294

17353212838

225627

1133624

60456

18203837

1966186862112676

spots.

UTi Measures

andGroup Rad. RM.№. Eist. Arg.

1958 о

June 10. 438187181401m1872518728 .187261873018729187361873718732187331873418735

June 11.3601872518728187261401л1873018729187361873718732187331873518738

June 12. 498187251872618728187291873018736187321873318735187381401o1873918740

a

A stream, developing at the westA group ofA few smallОле or two

.981

.962

.557

.691

.473

.252

.315

.512

.349

.467

.615

.784

.923

.697

.718

.523

.611

.330

.356

.455

.190

.344

.473

.844.989

.843

.650

.772

.524

.492

.482

.321

.316.711.907.947.957.987.987

limb

(-12.0)296.3311.6227.0354.9351.3

0.4170.9151.5118.8129.067.0

107.0117.0

(-11.6)236.4342.9331.9340.6322.0204.0173.6150.0149.458.8

119.882.1

(-11.1)242.9316.3332.9233.7303.4205.3195.336.7

126.181.058.574.2

116.7116.7

.variable spots, not seen on Junespots.

tiny spots,

Rjsition

Long. Let.

0 0

(200.9)278.4270.2226.8205.8205.5200.8197.9185.2182.9178.7165.3150.8136.5

( 188. 7)227.3205.6204.8203.1200.8197.4185.5183.2178.2164.1135.4107.5

(173.6)227.5204.2202.7199.8198.8186.7178.7162.4134.7108.9105.2101.294.694.6

14.

(+0.5)+25.9+39.8-21.8+43.8+28.3+15.0-17.6-26.2-9.1-16.6+14.3-12.9-24.5

(+0.6)-22.1+43.7+28.0+35.6+15.6-18.3-26.2-8.9-16.6+14.7-24.3+ 7.9

(+0.7)-22.1+28.5+43.9-17.4+16.3-25.0-17.2+15.3-24.1+ 8.5+29.9+15.3-26.2-26.2

Area

l M*, «noli

734

33126226

1541740

12

23130224

1853159

170

30148113

55271

1320

275555

53613

228889

17348

32337

28194

77

147969

1561134123148

27419523

1581095614

113817378

73136

212182182

A small regular spot.One or twoA few tiny

variable spots.spots.

One or two tiny spotsA cluster of spots on June 12 and 13,normal type. Only the leader remains

- 24. A pair of regular spots, of which the

developing into a stream ofon June 23.follower dies out by June 20.

Page 41: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 225

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

UT.and

Group№.

1958

June 13.3241872518728187261873018729187361873218733187411401p18735187381873918740

a

June 14.5581872818726187361874118735UOlq187381873918740

a

June 15. 5691872818726187361873218742187381873918740

a

June 16. 3221872818726187361874218739

Group 18741Group 18742Group 18743Group 18744Group 18745Group 18746Group 18747Group 18748

Group 18749

Measures

Rid. RJS.DLst. Aig.

о

(-10.7).926 245.4.837 324.2.733 309.1.641 294.7.653 241.4. 562 218. 1.391 216.5.236 347.7.389 357.3. 379 37. 5. 599 134. 7.803 79.7.881 72.9.963 118.1.954 117.8

(-10.2).927 317.2. 868 302. 4.707 230.6. 470 321. 9. 464 156. 4.563 140.9.616 76.6.711 69.8.871 121.4.855 121.6

(-9.8).973 314.8.947 299.2.842 238.8.735 243.2. 496 136. 4. 469 70. 2. 545 62. 6.761 126.6.739 127.6

(-9.5).988 314.2.959 300.5.915 241.9. 408 153. 5. 413 52. 5

June 13. June 15

June 16June 16

. June 17

. June 17June 18

. June 18

. June 19

Pos:

Long,

о

(162.7)228.0204.8202.7199.9199.5185.2176.8165.7163.8148.7135.0109.9102.190.992.9

(146.4)206.2202.5183.6164.6134.7123.4109.2102.990.592.5

(133.0)205.3202.0185.5176.6111.8106.5103.090.392.6

О

(123.0)201.2194.4185.6111.9103.2

- 14.- 17.- 27.- 23.- 18.- 18.- 19.- 29.

L tien

Let.

. о

(+0.8)-22.3+43.2+28.1+16.1-17.5-25.4-17.5+14.1+23.6+18.2-24.1+ 8.7+15.4-26.7-26.1

(+ 1.0)+43.3+28.2-25.8+22.5-24.1-24.9+ 9.0+14.9-26.4-26.0

(+ 1.1)+43.6+27.8-25.1-18.5-19.9+10.1+15.4-26.0-25.9

(+ 1.2)+43.7+29.5-24.9-20.2+15.6

A tinyA tiny

Area U.T.

"*• К ЧЁ*1958

Measures

Rad. Pos.Dist. Arg.

0

Position

Long. Let.

0 0

Area

Шч Whole"*• Spots

June 16. 322 continued16 141

105 513206 1226

9 491 84 205 310 31 91 5

11 632 6

70 36451 30430 212

53 369126 827

13 861 53 323 213 16

98 65194 41951 245

34 254104 663

5 134 301 71 9

100 65481 37247 215

6 4412 154

2 90 3

108 700con tinned

spot.spot.

A regular spot,A pairOne or

18740a

1874318744

June 17. 36618726U01T

18745187421873918740

a187431874418746

June 18. 327187451873918740

a187471401,18743187441874618748

June 19. 3331873918740

a1874718743187441874818749

June 20. 5471873918740

a18743

.669

.644

.962.987

.996.825.546.379.259.548.528.868.954.989

.715.273.477.468.331.323.735.876.939.978

.412

.474

.481

.181

.560

.750

.932

.934

.630

.586

.591

.313

133.4135.084.770.3

(-9.0)299.5296.4250.0186.621.8

147.4150.484.068.8

105.4

(-«.6)255.6332.0167.2171.457.070.582.967.4

106.777.0

(-8.2)305.4191.8195.6

7.981.064.076.079.1

(-7.6)291.8217.4218.173.9

90.392.749.042.7

(109.2)193.8162.0140.4111.9103.590.192.449.237.728.6

(96.5)140.9104.189.892.180.178.749.537.128.018.8

(83.1)103.489.391.381.649.437.314.814.4

(67. 1)104.290.490.949.6

-26.2-26.0+ 5.5+19.6

(+ 1.3)+29.5+22.3-9.6-20.7+15.1-26.2-26.0+ 5.8+20.5-15.0

(+ 1.4)-9.2+15.2-26.2-26.0+11.7+ 7.5+ 6.2+20.4-15.1+13.0

(+ 1.6)+15.2-25.9-25.9+11.8+ 6.3+20.3+13.6+10.7

(+ 1.7)+14.8-26.1-26.0+ 6.5

5436220

27201

113513121180

41094831

40

13193

12

10756447

20291810

96464015

28917812821

2611648

689267165111126

16

15661295187

373

103156

1059

79925917286

10322311286

78521918991

continued

with an occasional companion.of widely-separated spots.two tiny spots.

A small spot.A cluster of small spots.A pair of spots, developing into a stream which breaks up and diesout after June 26.

- 29. A short stream, which breaks up and dies out after June 26 .

Page 42: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 226 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

СтарNo.

1958

Rad. Pos.tust. Arg.

Position

Long. Lot. Uib.

Area

«holeSpots

U.T.and

QtxpNo.

1958

Measures

Red. Pas,Dist. Ang.

Position

Long. Lat.

Area

Uib. «holeSpots

June 20. 547 continued1874418748187491875018751

June 21.6101873918740

a18752187431374418749187481875018751

June 22.6121873918740

a187521874318744187491874818753187501875118754

June 23. 3761873918740

a187521401 1

.582

.805

.811

.954

.974

.792

.717

.717

.520

.109

.429

.647

.662

.844

.896

.907

.833

.833

.719

.191

.335

.467

.517

.716.708.777.959

.968

.906

.906

.837

.686

55.673.878.1

102.8105.4

(^.1)287.5230.4230.4280.1

35.940.675.170.6

104.8107.7

(-«.7)285.7237.1237.1278.3296.3

12.471.363.955.7

107.4113.971.7

(-6.4)285.2240.3240.3277.6304.7

36.414.513.5

355.5351.3

(53.0)104.290.690.683.949.335.713.613.1

356.9351.2

( 39. 8)104.390.590.585.449.735.413.211.2

359.2356.5352.0326.8

(29.6)104.890.290.286.267.7

+20.5+14.0+10.6-11.7-14.5

(+ 1.8)+14.8-25.7-25.7+ 6.8+ 6.8+20.7+11.0+14.1-11.4-15.0

(+ 1.9)+15.0-25.7-25.7+ 7.2+ 6.7+20.9+10.3+14.7+25.1-10.8-17.0+18.1

(+ 2.0)+15.2-25.7-25.7+ 7.4+24.5

2722142119

106383814151932233631

81353514149

3128

149360

73272724

1

14714076

140115

5692122126485

108214210163144

469162162878537

172297

10245245

12

40816516586

3

June 23. 376 continued187431874418749187481875318750187511875518754187561875718758

June 24. 30218740

a187521874318759187491874818750187511401ц187551875418756

a1875718758

June 25. 34218752187431876018759187491874818750

.348

.323

.319

.390

.609

.581

.672

.800

.873

.977

.988

.990

.968

.968

.931

.545

.313

.166

.245

.406

.532

.695

.659

.786

.909

.890

.930

.959

.981

.735

.548

.457

.227

.255

.259

285.1337.260.953.350.1

112.6118.6109.071.4

110.695.882.2

(-5.9)242.7242.7277.2278.3332.1

28.626.7

124.9129.1131.9113.970.0

112.5112.296.981.4

(-5.5)276.1276.7237.0309.5ЗЮ.5327.3157.9

49.337.213.210.8

358.8356.6351.6338.7329.8313.6309.0307.8

(17.4)89.889.885.850.126.212.810.9

357.6351.8342.4339.2327.1314.7317.2309.6305.1

(3.6)82.350.731.925.413.711.7

357.9

+ 7.1+19.2+10.8+15.3+24.6-IL 2-17.1-13.6+17.2-19.6- 5.4+ 8.0

(+2.1)-25.7-25.7+ 7.4+ 6.3+18.1+10.4+14.7-11.4-17.6-25.9-13.8+16.9-19.4-18.5- 5.6+ 8.8

(+ 2.2)+ 6.4+ 6.4-15.4+18.8+10.6+14.5-11.7

13 684 12

18 10619 273

1 836 21419 1327 508 37

82 40422 8831 223

27 20027 20013 4610 513 22

26 19625 24433 17813 105

1 823 137

2 10ПО 73346 35816 13165 561

0 1810 54

3 130 5

27 21735 30113 70

continued continued

Group 18750.

Group 18751.

Group 18752.Group 18753.Group 18754.Group 18755.Group 18756.

Group 18757.

Group 18758.

Group 18759.Group 18760.

June 20-28.

June 20 - 26.

June 21 - 25.June 22 - 23.June 22 - 24.June 23 - 26.June 23-July 4,

June 23-July 3

June 23-July 5

June 24 - 25.June 25 - 26.

A scattered stream, of which only one component remains afterJune 26.A single spot on June 20 and 21, developing into a scattered stream.Only the leader remains on June 26.A small stream on June 21; a pair of spots thereafter.A tiny spot.One or two small spots.A short-lived stream.A cluster of spots, developing into a large stream of normal type.The leader and follower gradually separate in longitude as thegroup crosses the disk.A regular spot with one or two companions until June 30, when itbreaks up and dies out.A stream of normal type, of which the leader becomes regular inoutline from June 28. The follower breaks up after June 30 and isnot seen on July 3.A pair of tiny spots.A pair of tiny spots.

Page 43: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 227

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

Ck-op№.

1958

June 25. 342187511875518756

ab

187571875818761

Jure 26. 318187431876018749187481875018751187621402a1875518756

18757187631402Ь187 581876118764

June 27. 337187431402с187491874818750187621876518756

аЬ

187571876318758187611876418766

Meesures

Had.Dist.

Pos.Ang.

0

Position

Leng.

0

Lut.

о

Area

Uib. VholeSpots

continued.393.482.795.756.823.805.867.949

.869

.701

.412

.388

.277

.357

.474

.426

.336

.652

.595

.705

.637

.720

.755

.740

.847

.969

.960

.906

.609

.564

.412

.485

.401

.494

.421

.569

.433

.554

.585

.709

.899

.903

149.6124.9116.7116.7116.598.980.3

101.6

(-5.0)276.0244.3290.3307.6208.9184.8167.0

15.7148.8123.9125.4123.2102.471.564.278.4

103.263.2

(-4.6)276.0293.6284.4295.9236.2191.6162.0137.1143.0134.2109.664.574.8

108.261.579.4

351.6339.7315.0318.4312.1310.8303.8293.0

(350.7)50.931.613.79.3

358.5352.5344.0343.3340.4315.9320.2311.7312.1305.9304.2зоэ. 5294.1275.8

(337.2)50.840.913.99.0

357.5343.4329.7316.5321.9311.4313.1306.0302.3294. 1275.4272.9

-17.6-13.9-19.1-18.2-20.1- 5.8+ 9.5-10.3

(+2.4)+ 6.4-15.8+10.4+16.0-11.6-18.4-25.0+26.5-14.3-19.3-18.0-20.7-6.0+14.9+20.8+10. l-9.8+26.5

( + 2. 5)+ 6.4+22.4+10.7+16.3-10.8-25.8-19.8-18.8-17.1-21.0- 6.0+15.8+10.8-10.9+26.6+10.7

1212

16979901577

3

71

253471306

16979901514

871310

02

1814

132

169768912

265

910

2

4858

1107460647118530

19

2811

205298

201075

271096

500596926

1654310398

165

144140

71512

9554305076532

512465923

U.T.and

GroupNo.

1958

Jure 28. 372187491874818750187621876518756

1402d18757187631875818761187641876618767

June 29. 558187491874818756

аЬ

18757187581402e18761187641403f1876718768

June 30. 32918756

1875718758187611876718768 .

July 1. 3351402g

Measures

Rad.n.St.

.788

.763

.601

.554

.383

.373

.329

.441

.150

.233

.371

.374

.517

.790

.774

.992

.938

.905

.407

.428

.405

.181

.151

.206

.326

.651

.709

.926

.988

.521

.550

.467

.327

.173

.241

.848

.950

.918

Bos.Ang.

о

(-4.1)281.1288.9247.8216.2199.3164.3180.6153.780.5

130.352.168.3

115.257.977.768.9

(-3.6)280.4286.8209.7220.8188.2209.429.5

144.4136.250.459.268.265.0

(-3.2)228.9235.2209.4238.7318.0170.667.064.8

(-2.8)239.8

Position

Long.

о

(323.5)15.112.0

357.9344.4331.1317.4323.7311.5315.0313.3305.9302.9295.2275.3273.3240.3

(307.8)17.412.1

320.0324.7зп.з312.9303.5300.9294.6273.8266.5240.8226.6

(297.6)321.8325.5311.8313.9304.3295.3241.2226.7

( 284. 3)346.2

Let.

о

(+2.6)+10.3+16.0-11.0-24.0-18.5-18.4-16.5-20.6+ 4.0-6.1+15.6+10.4-10.4+26.5+11.1+21.3

( + 2. 7)+10.7+16.3-18.0-16.2-20.9-6.4+10.3- 6.9-10.9+26.7+23.2+21.2+25.1

(+ 2.8)-17.4-15.7-21.2- 7.1+10.1-10.9+20.9+24.7

(+ 2.9)-26.1

Area

Ifab.

168111

1397460

2176

791877

69

102

149974814720

1630

7419

12095251341105561

2

DholeSpots

9842654

905425446

106538

434632532

325

13216

85356327062

3145

87159

354363

75459016465

21945

287602

16continued

GroupGroupGroupGroupGroupGroupGroup

18761,18762,

18763.18764,

18765.1876618767,

June 25-July 1.

Group 1B768

A short stream, of which the leader is the most stable component.June 26 - 28. Two or three tiny spots.June 26-28. A few small spots.June 26 - 29. Two or three small spots.June 27-28. A few tiny spots.June 27 - 28. Two or three small spots.

June 28-July 10. A variable stream, of which the principal component, a regularspot, is the sole survivor on July 8.

June 29-July 11. A complex stream; which becomes scattered as it breaks up and diesout.

Page 44: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 228 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

QoupNb.

1958

July 1. 33518756

187571875818761187691877018767187681877118772

a

July 2. 36718756

ab

18757187581402h187691403Í187701876718768187711877318772

ab

18774

July 3. 30418756

ab

1875718758187691877518770187671876818771

лева

Rad.Dist.

sures

ft».Ang.

0

res]

Long.

о

L tien

Let.

0

A

Uib.

rea

«holeSpots

continued.677.712.591.529.367.298.201.666.720.872.875.984.984

.823

.853

.734

.716

.570

.524

.161

.375

.453

.553

.757

.734

.920

.946

.928

.970

.963

.924

.942

.846

.859

.741

.341

.152

.257

.408

.618

.567

239.8243.8226.1249.7290.2214.947.986.062.962.097.4

113.2113.2

(-2.3)246.7249.1236.9256.3283.9296.3323.2

11.185.555.458.499.963.7

115.7116.5114.974.3

(-1.9)250.4251.7242.5260. i280.9292.0

14.784.940.752.0

103.3

322.0325.8311.4314.2304.7294.3275.6242.7241.1255.9223.9206.9206.9

(270.6)322.7326.4311.7315.0304.7299.7276.2266.1243.8241.6225.2224.2205.0202.9206.2197.6196.3

(258.2)323.4326.6311.5316.5305.7276.9256.0243.4241.7225.8224.7

-17.6-16.1-21.5- 8.0+10.0-11.2+10.6+ 4.8+21.2+25.7- 5.0-22.2-22.2

(+3.0)-17.1-16.0-21.3- 7.6+10.3+16.0+10.4+24.5+ 4.7+20.9+25.4- 5.2+25.3-23.1-23.1-23.2+15.9

(+3.1)-16.7-16.1-21.1-6.7+10.1+10.3+11.5+ 4.3+20.9+25.0-4.9

Ill92191537

517114566

44949

9279139

282

341

135487

73

11861579

797180

2433111948

14115

607479128107187

197162

287543

21326326

6055099653

13413

1735

56295746

3415

742354388

38

656609

471292

16043

113241

100255

continued

U.T.ard

Cknupto.

1958

July 3. 304187761877318772

ab

18774

July 4. 32418756

ab

187581876918775«02/18770187671876818771187761877318772

ab

18777

July 5. 3321875818769187751877018767187681877118778187761877318772

ab

18777

July 6. 34518769

nca

Red.DLst.

Aires

Fbs.Arg.

0

rosi

Long.

о

L tien

Lat.

о

Ai

Uib.

rea

«holeSpots

continued.767.842.883.831.911.902

.993

.994

.943

.855

.563

.252.379.041.301.475.364.602.714.764.710.811.987

.961

.751

.452

.220

.336

.385

. 170

.391

.466

.582

.641

.587

.692

.943

.899

58.460.4

118.4120.9117.372.5

(-1.4)253.3253.6246.4280.9284. 2304.0212.047.29.7

37.0111.450.455.4

124.0128.2121.961.3

(-1.0)279.8281.8289.7276.0333.2

13.4140.8150.235.246.7

133.4140.6129.058.5

(-0.5)280.6

211.9203.6200.8207.5196.7194.3

(244.7)326.3327.0312.2303.3278.3256.9256.7243.0241.6226. 3224.9214.0203.9201.4207.4196.4163.9

( 231. 4)305.5279.7257. 1244.0240.7225.8225.2219.8214.1203.3201.1207.5195.8162.4

(218.0)280.7

+25.8+26.3-23.1-23.3-23.2+17.1

(+3.2)-16.1-15.9-20.9+11.0+10.5+11.2-15.5+ 4.8+20.4+25.2-4.6+25.3+26.2-22.9-23.5-23.2+28.8

(+3.4)+10.4+11.1+11.8+ 4.6+20.7+25.3- 4.2-16.4+25.6+26.4-23.1-23.8-23.0+30.7

( + 3. 5)+11.0

05

1626894

4

68617

232891

3251

128103

36152648821

02014623976

5156

56136637539

14

419

759309450

24

529505

2475

11940

4203207

10005021

196777315462209

19112113449322918

324740

510773329444406

145continued

Group 18769. July 1-7

GroupGroupGroup

Group

GroupGroupGroupGroup

18770.18771.18772.

18773.

18774.18775.18776.18777.

JulyJulyJuly

July

JulyJulyJulyJuly

111

2

2334

- 10- 7- 14

- 14

- 3- 8- 10- 15

Group 18778. July 5 -

A short stream, of which the leader, a regular spot, alone remainsafter July 4.A broken stream, of which only the leader remains at the west limb.A cluster of small spots.Abi-polar group. After July 7 intermittent spots appear, forminga long stream of which a regular spot is the principal component.A short, compact stream, which slowly breaks up after July 10.Only the rear component remains on July 12.One or two small spots.A short stream.A cluster of variable spots.A stream, led by a regular spot. After July 10 there is a suddencollapse and by July 15 only the rear part of the group remains.

11. A regular spot, with occasional following companions.

Page 45: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 229

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

GroupNo.

1958

July 6. 3451877518770187671876818771187781402k187761877318772

ab

18777

July 7. 45618769187751877018767187711877818768187761877318772

ab

14021187771401a,18779

July 8. 4391877518770187671877818768187761877318772

1403n1877718779

July 9. 31218770187671876818778

Measures

Rad.Dist.

Fee.Arg.

о

Position

bug.

о

Let.

о

Area

Ufa.flholeSpots

continued.639.432.483.395.200.334.301.372.467.520.490.567.864

.975

.811

.644

.663

.413

.456

.481

.379

.398

.458

.471

.466

.321

.749

.854

.968

.912

.816. .804

.610

.620

.504

.435

.476

.540

.448

.232

.638

.903

.920

.898

.738

.731

283.7272.6306.9341.9221.3189.0351.5

9.431.9

149.4160.3139.956.9

( 0.0)280.6282.0273.0296.9248.0223.4323.4340.4

5.1173.7188.3161.620.751.262.0

113.8

(•»0.5)281.4273.0292.7237.4310.9317.7338.3198.5210.1187.5345.543.7

116.3

(*0.9)272.7290.7303.5243.3

257.1243.5242.2225.8225. б221.0220.7214.2202.0201.3207.6194.8161.4

(203.3)280.6257.2243.3242.2225.8222.2221.8211.3201.0200.2207.6194.2196.4160.8146.8130.9

(190.2)256.0244.8242.3222.4221.8212.1200.5199.6207.4193.8193.7159.5129.8

(178.7)245.5242.0222.1221.4

+11.4+ 4.2+20.0+25.4- 5.1-15.7+20.7+25.0+26.6-23.1-24.0-22.4+30.1

(+3.6)+11.1+11.8+ 4.7+20.2- 5.6-15.8+26.0+24.4+26.9-23.3-24.1-22.5+21.0+30.6+25.6-21.9

(+ 3.7)+11.9+ 4.6+20.4-16.0+27.1+25.2+27.4-23.1-24.2-22.6+16.6+30.6-21.7

(+ 3.8)+ 4.0+20.2+26.7-16.4

194822554

1522

961366967

103

112832144

18226

1361235667

1950

49

15351516223

8913469530

9558

43102518

219225123402

2495

534

689691332359436

97191249

921072

22836

686696331365

7443

7316

952487797

14624

645781333385

5488430

27140

157107

и.т.and

GroupNa.

1958

July 9. 312187761877318772

ab

187771877918780

July 10. 30418770187672402o18778187681402p187761877318772

аb

í 402g18777187791878018781

July 11.326187781876818772

аb

1877318777187791878018781

July 12.61118772

аb

187731402т187771402a1877918780187811402t

ftfeasures

Rad. Poe.Dist. Arg.

0

continued.635 306.1.516 320.7.541 214.9.644 223.2.508 208.3.537 32.8.811 120.3.971 73.7

(+1.3).995 272.6.970 289.9.887 253.5.867 249.0.854 298.9.821 257.7.776 299.9.648 309.3.668 229.9.773 232.8.615 224.3. 543 328. 1.455 13.0.691 127.3.894 73.3.988 49.9

(+1.8).955 252.1.942 295.1.815 238.2. 890 238. 5.744 234.2.776 302.6.446 345.7.554 140.4.768 71.8.945 48.8

(+2.3)•946 243.9.975 242.1.889 241.9.900 299.2.468 241.1.569 321.2.310 212.3.444 167.8.562 66.4. 859 45. 1.810 79.3

Position

Long. Let.

0 0

213.0 +25.0200.1 +27.0198. 2 -22. 6207.6 -24.6193.8 -22.8159. 1 +30. 3130.0 -21.6102.3 +16.7

(165.6) (+3.9)249.8 +3.0241.8 +20.2226.0 -12.7222.7 -16.0222. 1 +26. 6219.4 -7.8213.5 +25.3199.9 +27.4198.9 -22.1208.2 -25.0193.2 -22.6185.1 +31.0158.8 +30.1129.5 -21.5102. 5 +16. 784.4 +40.2

(152.0) (+4.0)222.5 -15.7222.0 +25.0200.5 -22.7209.0 -25.5192.7 -22.7199. 2 +27. 4159. 2 +29. 5129.8 -21.5102. 6 +16. 584.0 +40.0

(135.0) (+4.1)202.2 -23.0208.3 -26.0193.0 -22.6197.6 +27.9159.4 -9.3159.2 +30.0144.7 -11.1129.2 -21.5102.7 +16.483.8 +39.881.0 +11.1

Area

Uib.

5109128

5448766747

10409

2406

84210

51450

82803938

1217

22956284934614014

1783113243

141

5428172

«holeSpots

30616766292343389410209

86427

60127

647

4041289319306

7444400184139

70109

157334425544718939816294

1303325193154

1954

5420166105

4continued continued

Group 18779. July 7 - 1 8 . A composite spot, which becomes regular in outline after July 16.Group 18780. July 9 - 21. A regular spot, with a distant companion on July 17 and 18.Group 18781. July 10 - 20. A slowly-diminishing regular spot.

Page 46: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 230 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

Q-oipNo.

1958

July 12.61118782

a1878318784

July 13. 1441877218773187771877918785187801878118782

a

1878318784

July 14. 30818773187721877718779187851402u18780187861878118782

187831878418787

July 15.31818777187791402v1878018786

Measures

Rad.Dist.

RJS.Ang.

о

Fbsiticn

Long.

о

Let.

о

Area

Uib. WioleSpots,

continued.957.957.991.989

.967

.936

.629

.438

.299

.469

.815

.915

.915

.972

.973

.991

.988

.787

.513

.396

.232

.270

.573

.712

.787

.770

.836

.883

.876

.989

.868

.629

.506

.216

.483

83.183.1

112.394.1

(+2.6)245.6299.3314.2182.6176.862.242.683.483.4

113.295.0

(+3.1)298.2247.1304.3211.5223.3194.338.7

147.534.182.682.782.3

115.996.970.3

(+3.6)301.0226.8232.8346.1171.9

61.861.855.254.0

(128.0)200.0196.4159.1129.2127.0102.583.061.761.754.752.0

(112.6)195.9190.9160.5129.3128.7115.9102.592.981.560.762.355.954.952.230.5

(99.2)157.2128.6123.6102.394.9

+ 7.8+ 7.8-21.4-3.4

(+4.2)-22.3+28.8+29.5-21.7-13.1+16.4+39.8+ 7.8+ 7.8-21.3- 3.8

(+ 4.3)+28.5-21.8+29.1-21.7-12.5-8.6+16.3-24.7+39.7+ 8.5+ 8.3+ 8.8-20.4-4.0+20.1

(+ 4.4)+28.9-21.6-13.8+16.4-24.1

31311830

119218

635

311730302764

764

4931

319

23132103

29175418

2330

3417

136136166157

7299145

47231

16388

133133127316

475724

240167

1494292

617447170116329119

12200

517496

continued

и.т.and

GroupNo.

1958

July 15.3181878118782

ab

1878318784187881878718789

July 16.549187791878018786187811879018782

ab

18783187841878718791187891402 w

July 17.62818779187801878618792187901878118782

ab

18783187841878818793187871878918791

№B!

Rad.Dist.

ures

Ров.Arg.

о

rosi

Long.

о

tien

Let.

о

AI

Ihb.

•ea

flnoleSpots

continued.635.629.597.693.773.742.878.940.971

.780

.380

.512

.584

.310

.391

.346

.464

.599

.524

.820

.834

.855

.901

.897

.563

.621

.272

.365

.604

.163

.121

.228

.475

.312

.524

.516

.680

.710

.734

22.982.282.281.7

121.799.669.770.071.0

(+4.1)237.7304.0203.5

4.7167.578.578.578.8

133.2105.568.174.970.286.5

(+4.6)243.2292.7222.5289.0213.0348.062.856.469.1

152.0118.056.282.463.067.474.1

80.560.362.655.454.752.238.329.222.6

(82.9)127.8102.095.779.379.060.263.055.655.352.628.826.624.718.6

(68.6)127.8101.295.683.680.378.160.262.856.254.952.640.937.628.224.821.9

+39.8+ 8.3+ 8.2+ 8.9-20.8-4.1+19.9+20.2+19.5

(+4.5)-21.3+16.5-23.5+39.9-13.0+ 8.6+ 8.2+ 9.1-20.1- 4.1+20.4+15.1+19.2+ 5.1

(+4.6)-21.5+16.4-23.1+ 9.5-13.2+40.6+ 8.8+ 8.4+ 9.1.-20.2-4.0+20.9+ 7.9+21.5+19.1+14.8

20183107622355

22316

302438

74

19710573194814082

413039313

22816068

960

08

2510

86914523306119308

229499

1981531943239

120567340388

23074

4458

156179257

81722

1407826581

59214

538

132237

Group 18782. July 12 - 24.

Group 18783.Group 18784.Group 18785.Group 18786.Group 18787.

Group 18788.Group 18789.

Group 18790.Group 18791.Group 18792.Group 18793.

July 12July 12July 13July 14July 14

July 15July 15

July 16July 16July 17July 17

- 22.- 24.- 14.- 21.- 22.

- 17.- 24.

- 21.- 19.- IB.- 22.

A single spot on July 12 and 13. rapidly developing into a largebi-polar group.A small spot, with a few variable companions.A regular spot, with some following companions until July 20.Che or two tiny spots.A stream of small spots.At first a regular spot, which from July 17 begins to break up anddisperse.One or two tiny spots, not seen on July 16.A pair of widely-separated spots until July 20, after which thegroup is represented by a small variable cluster. Nothing is seenon July 23.A few small spots, not seen on July 18.A small unstable spot.A pair of tiny spots on July 17 ; a single spot on July 18.A pair of spots until July 19, after which only the leader remains.

Page 47: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIС RESULTS 1958 С 231

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т. teasures Position Area

GroupNo.

1958

July 18. 326187791878018786187921878118782

18783187841879318787187911878918794

July 19.6221878018786187901878118782

ab

1878318784187931878718791187891879418795187961879718798

July 20.623187801878618790

Rad.Dist.

.951

.678

.707

.451

.632

.071

.085

.101

.436

.197

.376

.574

.565

.590

.933

.868

.852

.674

.737

.315

.367

.245

.476

.239

.087

.377

.308

.419

.788

.771

.982

.983

.991

.949

.934

.808

Pos.Arg.

o

(+4.9)245.2289. 2230.7283.7339.3352.7317.739.7

168.5138.780.758.572.263.8

109.4

(+5.5)286.8238.9243.9324.7282.9280.7288.3204.3233.545.138.557.750.1

113.967.3

109.175.795.5

(+5.9)286.1242.9249.6

Leng.

o

(59.4)127.6101.195.785.776.559.962.755.754.151.937.527.825.925.5

353.2

(42.3)102.494.780.776.560.363.655.954.453.338.727 Л26.822.4

354.1353.1325.6322.2320.7

(29.0)101.093.579.9

Let.

о

(+4.7)-21.8+16.3-22.8+10.3+40.6+ 8.7+ 8.3+ 9.1-20.5- 3.8+ 7.8+21.4+13.8+19.0-16.1

(+ 4.8)+16.9-23.2-13.5+40.9+ 8.6+ 8.4+ 9.0-20.9- 3.4+ 8.3+21.8+14.1+20.1-15.4+20.5-17.7+15.0-4.8

(+ 4.9)+16.8-23.1-13.2

TJhb.

263549

16

228148807

448

26170

32136

14

213156

575

32102402

1034

731918

2287

4

flholeSpots

147164335

724

1280748532

2522035

1527

4510

164761

817

1218728490

2016422

1478

17460

22324141184

155680

29continued

U.T.ma

Grouptb.

1958

July 20.6231878118782

18783187841879318787187891403x1879918795187941880018796187981879718801

July 21.4801878018786187901880218782

1878318784187931878718789187991879518794188001879618797187981880118803

№8!

Rad.Dist.

irres

PDS.Ang.

o

rosi

Leng.

o

non

Lat.

0

ЯГ

Uib.

ea

«holeSpots

continued.818.510.551.434.571.419.186.287.267.145.513.618.658.678.931.945.942.985

.991

.977

.904

.872

.674

.712

.610

.694

.594

.380

.315

.241

.363

.463

.509

.551

.844

.844

.859

.926

.947

318.1278.5277.5280.3221.2250.5287.9

6.326.285.1

125.362.5

119.8123.5111.596.774.7

106.8

(+6.3)286.7244.7253.1246.7277.2276.5277.8232.5257.1279.0329.3336.6145.153.5

129.9134.2114.974.998.5

108.787.3

75.159.562.454.552.652.239.227.122.620.73.7

353.3352.9352.7323.7318.9318.3311.0

(17.7)101.091.880.174.660.163.155.253.753.039.927.523.45.5

354.4354.0353.3324.3320.2319.4312.6306.4

+40.8+ 8.6+ 8.2+ 8.9-20.9- 3.5+ 8.0+21.1+18.7+ 5.6-12.8+20.5-15.1-18.0-17.9- 4.7+16.0-15.5

(+ 4.9)+17.2-23.4-12.9-17.5+ 8.5+ 8.0+ 8.6-21.0- 3.6+ 7.9+20.5+17.6-12.4+20.4-14.5-18.1-17.9+15.4- 4.7-15.2+ 4.1

022113982

5164

154344

615

4318340

2566

65

21513184

52046562

663

433914238

101216791425

20119

11106

22121837

36322

23498

24120

209460

2121

1229838391

11996

47292513

3304

247223967922

continued

Group 18794. July 18 - 28.

Group 18795.Group 18796.

Group 18797.

Group 18798.Group 18799.

Group 18800.Group 18801.

Group 18802.

Group 18803.

July 19July 19

July 19

July 19July 20

July 20July 20

July 21July 21

- 23.- 31.

- 31.

- 30.- 27.

- 21.

- 31.

. 22.- 24.

A tiny spot on July 18, developing rapidly into a stream of normaltype. After July 21 the follower breaks up and the leader aloneremains from July 25.A few small spots.At first a regular spot. On July 26, another regular spot appearsimmediately north of it.A composite spot, followed by one or two unstable companions untilJuly 24, when the group begins to break up and die out.A regular spot, which divides into two on July 27.A few scattered spots, developing into a stream led by a regularspot. The latter is the sole survivor by July 25.A small spot.A stream, appearing in front of Group 18805, extendinglongitudinally towards, and finally touching, Group 18796. Therear part is dying out as the group passes round the limb.Two or three small spots.One or two small spots.

Page 48: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 232 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.aid

Group№.

1958

July 21.4801880418805

ab

July 22. 3801880218782

ab

187831878418793187871878918799187951879418796187971879818801188031880418805

аb

July 23. 3421880218782

аb

187841880618799187951879418796187971879818801188031880718805

аb

18808

№8!

Rad.T&at.

lires

Pos.Arg.

0

rosi

Leng.

o

.tien

Lut.

0

Al

Uib.

•ea

VioleSpots

continued.969.989.973.996

.941

.816

.842

.761

.807

.752

.567

.443

.336

.302

.300

.386

.736

.719

.734

.840

.861

.887

.932

.912

.959

.989.921.936.883.875.569.381.277.334.602.549.569.695.680.734.843.815.885.996

72.7108.9110.2108.5

(+6.7)249.1276.3276.1276.5239.5260.6276.8307.4312.9176.728.5

149.1120.073.5

100.5111.987.372.7

111.7112.5110.3

(+7.1)251.7276.9277.3276.3264.1306.8218.5347.8186.6128.969.9

104.7117.589.960.7

116.0116.8113.674.1

301.5298.6303.9294.9

(5.8)72.960.663.255.453.753.640.327.720.74.8

356.9354.0323.9320.4319.6312.1306.4303.3300.4303.6295.2

(353.0)72.260.362.455.253.422.97.0

356.6355.3323.7320.9319.7313.7310.2308.4300.1303.2294.7267.1

+17.9-17.8-18.3-17.9

(+ 5.0)-17.7+ 8.0+ 7.8+ 8.2-20.8- 3.7+ 8.0+20.2+18.0-12.5+20.1-14.4-17.8+15.3- 4.2-15.2+ 4.9+17.6-18.1-18.1-17.8

(+ 5.1)-17.2+ 8.3+ 8.0+ 7.9- 2.6+24.3-12.4+20.7-14.2-17.7+15.1-4.0-14.2+ 3.8+24.7-18.6-18.2-18.1+16.3

41056837

10196121750

21101

191

255635132472

20013664

01108426260

240

223820112437

144954927

14970699271

601142818324

8119

56

1197

718122615279943719

1245646599

23929734195130

3133

612720712856

2118

321071677394149

и.т.Old

GroupNo.

1958

July 24. 34418782187841878918806187991879418796187971879818801188031880718805

ab

1880818809

July 25.41918806187991879418796187981879718801188071403a18805

ab

188081880918810

July 26. 580188061879918794187961879818797188011880718805

tfeasures

Rad.Dist.

.980

.962

.704

.718

.548

.420

.468

.368

.369

.531

.505

.577

.715

.684

.775

.955

.994

.854

.735

.592

.389

.177

.201

.376

.446

.384

.579

.541

.632

.861

.938

.981

.948

.883

.744

.431

.243

.239

.360

.333

.442

.427

.480

Pos.Ang.

о

(+7.5)277.1265.1291.7301.5236.8219.5145.359.9

113.9128.390.953.9

121.7124.1118.774.586.0

(+7.9)298.9246.5236.3175.1151.126.9

151.340.592.5

133.3138.0127.673.886.984.3

(+8.4)297.0252.2244.0212.1231.1315.6195.4

11.4154.8163.6144.4

Position

Long.

о

(339.8)58.653.323.322.57.8

355.7323.6320.6320.1314.4309.5309.2300.2303.3294.3266.6256.1

(325.6)22.69.2

356.1323.6320.7320.2314.9307.1303.1299.3303.2294.0266.2255.8246.6

(310.2)21.89.6

353.9323.9321.1320.1315.9306.1298.8302.9293.2

Lut.

о

(+ 5.2)+ 7.9-3.3+18.8+25.8-12.8-13.8-17.6+15.5-3.7 .-14.4+ 4.0+24.3-18.0-18.4-18.1+16.3+ 4.5

(+ 5.3)+27.3-13.2-14.5-17.4-3.6+15.6-13.9+24.8+ 3.9-18.6-18.7-18.1+16.6+ 4.7+ 6.6

(+ 5.4)+27.3-12.9-15.1-16.1- 3.4+15.1-14.8+24.4

-18.2-18.7-17.7

Area

Uib.

5090

13251344181782

19

14890585022

14. 15

4501116

12811

1468462733093

2524

26765

1230

1357659

«holeSpots

459458

8914560

23718193

5687

421053530523329101

708436

23558

109701

1627

850457393282194539

175989

2901733

9791

624332292

. continued

Group 18804.Group 18805.

Group 18806.Group 18807.Group 18808.Group 18809.

July 21 - 22.July 21-Aug.2.

July 23 - 26.July 23 - 26.

July 23-Aug.5.July 24-Aug.5.

Group 18810. July 25-Aug.5.

One or two tiny spots..A bi-polar group, of which the follower dies out before reachingthe west limb.A few scattered spots.A pair of spots on July 23 and 24; a single spot on the other days.A regular spot, with one or two companions.A regular spot, of which a small portion becomes detached after July27 and dies out by July 31.A composite spot, which shows a progressive decrease in area as itcrosses the disk.

Page 49: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 233

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

GroupNo.

1958

July 26. 58018811188081880918810

July 27.40718799187941879618798187971880118805

188111881218808188091881018813

Jiily 28. 330187941879618797187981880118805

18811188121880818809188101881318814

July 29.3621403b18796187971879818801

№8i

Rad.Lust.

lires

ПЭ8.Arg.

0

hbSl

Long.

о

tien

Let.

о

Ai

Urb.

•ее

WioleSpots

continued.462.708.809.897

.953

.858

.547

.406

.401

.444

.403

.415

.407

.315

.537

.575

.681

.793

.960

.929

.691

.582

.568

.585

.441

.484

.403

.239

.334

.41*

.507

.648

.899

.896

.923

.826

.746

.727

.722

57.170.987.684.8

(+8.8)254.6247.6230.2248.2299.3219.3178.0188.8165.639.673.867.488.485.563.6

(.+9. 2)252.2240.8291.0256.0235.2205.4212.6195.4

2.066.4Î9.289.586.862.676.6

(+9.6)261.1247.4287.3260.1243.0

286.0265.9256.2246.3

(299.3)9.6

354.7325.1321.4320.6316.2298.5303.1293.2287. 1 .267.5265.7256.4246.7225.1

(287 Л)352.8325.7321.5320.5316.7298.5303.0293.5286.6268.9265.4256.6246.7223.8223.3

(273.4)339.6325.4321.2319.0315.0

+19.4+17.3+ 5.2+ 7.1

(+ 5.4)-12.9-16.0-15.5-3.6+16.3-14.9-18.2-18.7-17.8+19.3+13.2+17.2+ 5.0+ 6.9+26.8

(+ 5.5)-14.2-15.3+16.6-з.з-14.7-18.0-18.7-17.3+19.3+12.8+17.3+ 5.0+ 6.3+26.9+14.2

(+ 5.6)-6.0-15.1+16.6-3.3-14.9

1453154

72

7925

2301236954

29

49326228

0108

24

20711975441227422358194

997

51

164

4281178438

5411

3751437

1490734383351

1659

342190428221

9489

1129

179565336428975

14927817344313535

395684810

1608continued

и.т.and

GroupNo.

1958

July 29. 36218805

188111881518812188161880818809188101403с18813188141881718818

July 30. 3571879618797187981880118805

a1881118815188161881218808188091403d188101881418813188191881818817

July 31. 30818796187971880118805

a1403e1881118815

Nfeasures

fed.Dist.

Fbs.Ang.

о

Fbsition

Leng.

о

Let.

0

Area

Uib. HholeSpots

continued.570.609.496.317.196.149.279.256.295.460.511.780.758.973.968

.929

.880

.881

.857

.714

.748

.493

.412

.333

.196

.220

.055

.105

.230

.589

.646

.645

.872

.904

.985

.959

.945

.840

.865

.781

.658

.597

226.1229.4218.6319.1277.030.1

163.635.791.287.479.460.075.0

116.1100.4

(+10.0)251.3285.8261.6249.1238.0239.4298.6272.4212.5306.3340.0103.640.488.671.453.7

111.1103.4119.6

(+10.4)253.7285.5252.6244.2245.0236.0292.4272.8

298.9302.4292.2286.0284.7269.0268.8264.4256.3246.0242.9224.6224.3200.9199.3

(260.3)325.7322.1321.0315.9299.6302.8287.4284.6270.7269.6264.8257.2256.4247.0225.1224.7222.9201.4201.4

(247.7)325.6321.9316.1300.2303.1291.7287.5284.4

-18.2-18.4-17.4+19.3+ 6.9+13.0-9.8+17.5+ 5.0+ 6.2+10.2+26.6+15.0-23.8-8.6

(+5.7)-15.0+16.6-4.6-14.5-17.8-18.2+18.7+ 6.2-10.6+12.2+17.6+ 4.9+10.3+ 5.9+15.4+27.1-8.9- 8.7-23.6

(+ 5.7)-14.9+16.5-14.4-18.0-21.8-18.2+18.9+ 6.3

917614150

243

432746

1312138

108

14220

214736223121

1143221

443744

17919

943

25290

4753358

508377124963

9611

238139269

917356

192613

68212

21597448337160696

88258120

12289353317

12568128

61816

1672496

18381318208

continued

Group 18811. July 26 -Aug.3.

Group 18812.Group 18813.Group 18814.

Group 18815.Group 18816.Group 18817.Group 18818.

July 27-Aug.2.July 27-Aug.7.July 28-Aug.7.

July 29-Aug.2.July 29 - 30.July 29-Aug.6.July 29-Aug.9.

Group 18819. July 30-Aug.7.

A stream of scattered spots, of which the leader becomes regularin outline by the time it reaches the west limb.A short-lived stream, forming immediately south of Group 18808.A scattered stream, of which the follower dies out by August 5.A stream, of which the leader, the sole survivor after August 4.splits into two regular spots by August 6.A short-lived stream, developing west of the central meridian.One or two tiny spots.A regular spot, with a small companion on August 1.A variable scattered stream, of which the inclination to theequator increases as the west limb is approached.A stream, of which the leader becomes a regular spot,while thefollower dies out by August 5.

Page 50: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 234 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.ari

GroupNo.

1958

July 31. 3081881218808188091882018810188141881318819188181881718821

Aug. 1.64918803

a18811188 IS1881218822188081880918810188201403f188131881418819188181403618817

. 18821

Aug. 2.5801880518811188 IS18812188081882218809188101882018813188191881418823

wasures

fed. Fbs.n.St. Apg.

0

continued.364 289.9.346 306.9.168 265.4.040 3S0.4.013 102.7.397 64.2. 502 42. 6.467 121.0.743 107.6.810 124.9.973 84.0

(+10.9). 9SO 249. 1.970 249.5.842 288.6.812 273.5.633 282.7.598 295.8.583 291.8.461 269.4.306 270.1.284 281.9. 226 196. 7. 356 6. 5.171 19.1.274 162.7.514 119.1. 679 142. 3.665 136.3. 854 84. 6

(+11.3).982 250.0. 938 287. 9.922 273.7.777 281.7.733 288.1.737 292.1. 640 270. 3.505 270.7.492 277.5.392 335.7. 308 210. 2.220 316.6.284 355.6

MOSl

Lcng.

о

268.1264.5257.3248.1247.0226.1225.4223.9202.1201.4170.8

(229.9)298.4302.8287.1284.3269.0264.7264.3257.3247.7246.2233.6227.3226.6225.2202.9202.1199.9171.1

(217.6)293.8287.9285.0268.7264.2264.1257.4247.9247.1228.0226.6226.6219.0

tien

Lat.

0

•1-12.5+17.4+ 4.9+ 7.9+ 5.5+15.2+26.9- 8.6-9.0-23.6+ 7.1

(+ 5.8)-17.8-18.2+18.7+ 6.2+12.5+19.8+17.3+ 4.9+ 5.6+ 8.9-6.7+26.4+15.1-9.3-9.3-27.3-23.6+ 7.6

(+ 5.9)-18.3+18.8+ 5.7+12.8+17.2+20.2+ 4.7+ 5.5+ 8.9+26.7- 9.6+15.0+22.3

AI

Ihb.

165717123865882794150

5546961491

491442381

81896583

121

5

137904

526

1416346062733

•ea

WuleSpots

8728311487

213444576125620109

11

406291722102

5214

254109182293

5487581348465

7127

17

197636

3118

251239984

22940524958118

continued

и.т.ard

Group№.

1958

Aug. 2.58018818188171882118824

Aug. 3.44518811188081882218809188101882018819188131881418823188181403h188171882518826188211882418827

Aug. 4.60318808188091881018820188131881918814188231881818817188251882618821188241882718828

Aug. 5.33518808

Rfeasures

fed.Edst.

Fbs.Ang.

0

Fbsitim

Img.

0

Lat

о

Area

Uib. «holeSpots

continued.350.563.723.952

.986

.849

.838

.779

.663

.650

.447

.478

.369

.328

.271

.352

.506

.585

.725

.569

.868

.976

.958

.921

.839

.830

.677

.657

.603

.535

.379

.520

.484

.633

.375

.729

.885

.940

.991

139.151.85.69.

(+11.288.286.291.271.271.276.234.319.297.323.179.

5.169.33.35.85.70.

103.

(+12.286.272.272.276.304.247.286.303.226.197.12.24.85.67.

105.115.

(+12.286.

2417

6)462044500826768400

1)3145297514600734

4)6

204.200.171.144.

(206.287.264.262.257.247.

2527

2)84847

246.8227.226.226.218.206.204.200.183.172.171.146.130.

(190.265.258.248.247.229.228.227.219.206.200.183.171.168.145.130.125.

(181.264.

870100512506

9)0002794696619194

2)7

-9.-23.+ 7.+21.

(+6.+19.+17.+21.+ 4.+ 4.+ 8.- 9.+26.+15.+21.-9.+26.-23.+34.+40.+ 7.+20.-11.

6961

0)130587472264869532

7515

13

4946

4171131547570

158

1104202

29

472761218

442243

1610049

237262433598

7344

8552282

13225

(+6.0)+17.+ 4.+ 5.+ 8.+27.-9.+14.

3337067

+22.3-9.-23.+34.+40.+ 7.+20.-10.-21.

(+6.+17.

48184253

1)2

36146

296137540

511311191

23227

25

2879719

119294199322

42554854471083

15713

354continued

Group 18820.Group 18821.Group 18822.Group 18823.Group 18824.

Group 18825.Group 18826.Group 18827.

July 31 -Aug. 5.July 31 -Aug. 4.Aug. 1 - 3.Aug. 2 - 4 .Aug. 2 - 14.

Aug. 3 - 7 .Aug. 3 - 11.Aug. 3 - 14.

AAAAA£}

AAA

Group 18828. Aug. 4 6.

cluster of variable spots.few tiny spots.pair of spots on August 1 and 2; a single spot on August 3.few tiny spots.tiny spot on August 2 and 3, developing into a stream of whichic follower breaks up and dies out after August 12.stream of small spots.group of variable spots.composite spot, which is breaking up as it passes

limb.A tiny spot.

round the west

Page 51: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHBLIOGRAPHIC RESULTS 1958 С 235

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

Groupto.

1958

Aug. 5.33518809188101882018813188141881918818188291881718830188251882618824

a1882718828188311883218833

Aug. 6.3241881318814188191883418818188291881718830188251882618824

a188271882818831188321883318835

a

Aug. 7.3291881318814

Measures

Hud. Нэв.Dist. Ang.

о

continued.973 272.8.918 273.2.903 277.2.791 299.2.749 284.5.771 252.4.516 240.3.494 312.2.574 211.9.359 332.5.468 355.4.604 13.4.628 63.7.603 64.4.798 108.2.879 118.2.964 120.0.989 114.4.992 73.1

(+12.7).897 297.4.878 283.5.889 256.1.752 298.3.686 248.7.618 300.9.688 225.4.464 313.3.520 334.6.570 359.2.455 54.7.421 53.6.654 113.8.776 124.1.894 123.9.939 117.3.939 73.9.986 104.8.986 104.8

(+13.1).969 296.9.963 283.7

H»l

Long.

о

257.9247.9246.1231.6229.6229.2208.1204.9200.4191.6183.8170.4144.3146.0130.9125.2112.2103.397.1

(168.1)231.5229.9228.9214.9208.4203.3200.3189.7183.6168.7144.8147.0130.8124.7112.3103.397.589.989.9

(154.8)231.5230.1

tien

Lat.

о

+ 4.1+ 5.4+ 9.1+26.6+14.9-9.4-9.3+25.0-23.3+24.5+33.8+41.8+21.0+20.1-10.5-21.2-26.7-23.0+17.5

(+ 6.2)+27.3+14.8-9.3+25.1-9.7+23.5-23.6+24.3+33.8+40.8+20.9+20.2-10.3-21.3-26.5-23.0+17.3-13.4-13.4

(+6.2)+27.5+14.9

AI

Uib.

95

1341404135

524

114

391717

24

230

463642104886

32088

1306035

20

16164141

2833

•ea

WioleSpots

891685

228182211296

1512215923

41021212214178934

25414820739

303420

17803744

685373180

68

7989

616616

163100

continued

и.т.and

Groupto.

1958

Aug. 7.32918819188341881818829188301882518836188261883718824

a18827188321883318835

a

Aug. 8.323188341881818829188301883618826188381883718824

a18827188321883318835

a

Aug. 9.3231881818829188301882618838188371883918824

a

NEB

Dist.

sures

Fbs.Ang.

о

nDSI

Lang.

о

tien

let

о

Л]

Uib.

•ea

WioleSpots

continuée/

.

.

.

.

.

.•

.

.

.

970884832768607604401599333323277489858839930928

971930887756527671415425267271344751700827822

990961871

.763590

.577

.610

.362411

259.294.253.295.302.322.225.342.188.34.25.

124.122.73.

107.107.

(+13.292.256.294.296.243.329.304.220.351.339.147.128.71.

110.110.

(+13.258.293.293.

0647507175591732

5)253455919279975

9)787

320.6294.9237.7222. 8316.6308.5

229.216.208.203.188.181.171.168.157.143.147.130.102.97.89.89.

(141.219.208.204.189.170.168.162.157.144.147.131.102.97.89.89.

(128.208.203.188.168.

2776837885587604

7)111304890604837

5)758

,2163.0158.3154.7143.9148. 5

-9.+24.-10.+23.+24.

06151

+33.8-10.+40.

37

-12.9+21.+20.-10.-23.+17.-13.-13.

(+6.+23.-10.+24.+23.- 8.+40.+19.-12.+21.+20.-10.-23.+17.-13.

5553054

3)004909б9697212

-12.8

(+6.-10.+24.+23.

3)266

+40.9+19.-12.

64

-20.9+21.2+20. 7

2814415634

12

1523

103491920258070

038793408б

14113

53301513

127114

416961198

3318

13668

21288

221366213

3135441

6472801687584

686642

8296461369

45738

13984545520712180

835709

31139145113344

15169

757381

continued

Group 18829. Aug. 5

GroupGroupGroup

GroupGroupGroup

GroupGroupGroupGroup

18830.

18831.18832.

18833.18834.18835.

18836.18837.18838.

18839.

Aug.Aug.Aug.

Aug.Aug.Aug.

Aug.Aug.Aug.Aug.

555

566

7789

- 11.- 6.- 17.

• 14.- 8.- 18.

- 11.- 11.- 10.- 13.

A stream, forming west of. the central meridian; the leader becomesa regular spot.A short, compact stream.A tiny spot.A regular spot with a following companion. On August 10 otherspots appear, forming a stream.A regular spot.A group of small spots, appearing near the west limb.A stream, of which the leader, a composite spot, is the solesurvivor at the west limb.A few small spots, not seen on August 9.A stream of small spots.A pair of small spots.A stream of small spots.

Page 52: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 236 ROYAL OBSERVATORY BULLETINS [NO. OU

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

Measures Position Area Nfeasures Position Area

andGroup Rad. Pos.to. Dist. Arg.

1958 о о

Aug. 9.323 continued18827188401884118832188331884218835

a1884318844

Aug. 10.57518830188361882618838188371883918824

a

1882718840188411883218833188421884518835

a18843188441884618847

Aug. 11.449188301883618826188371883918824

a188271884018841

Group 18840Group 18841Group 18842

Group 18843

Group 18844

Group 18845Group 18846Group 18847Group 18848

. 293 187. 2

.584 149.9.460 115.5.645 138.9. 532 67. 2.645 118.5.699 П5.8.685 116.1. 895 42. 3.993 75.7

(+14.3).956 293.3.865 255.4.869 314.3.768 290.3.772 247.9.761 235.7.570 297.9.624 294.8.427 227.1.498 173.5.237 151.3.525 158.9.307 51.1.449 137.5.615 146.5.523 127.9.493 130.1. 797 36. 3.911 76.3.965 75.0.975 87.4

(+14.6).988 293.6.951 257.2.933 310.5.879 251.8.868 241.2. 727 292. 2.753 291.1.572 239.5.510 194.6.243 210.3

. Aug. 9

. Aug. 9

. Aug. 9

. Aug. 9

. Aug. 9

. Aug. 10

. Aug. 10

. Aug. 10

. Aug. 13

130.6109.8103.9101.197.793.188.589.670.444.1

(111.9)185.8169.7167.4161.6158.8153.9144.4148.9130.4108.4105.4100.197.593.890.087.089.370.445.736.134.6

(100.4)183.3170.5167.9159.0154.7146.2148.6130.4108.4107.4

- 16.- 13.- 13.

- 19.

- 17.

- 18.- 14.- 14.- 15.

andт t iKh **>1е Group

о 1958

Rad.Dist.

Pos.Ang.

o

long,

o

Ut. Uib. £££

о

Aug. 11.449 continued-10.5 35 190 18832-24.3 16 84 18833- 5.6 5 39 18842-23.4 37 178 18845+17.3 13 68 18835-12.8 6 29 a-12.8 148 881 18843-12.7 118 696 18844+44.9 6 36 18846+14.9 28 98 18847

(+6.4) Aug. 12.375+24.1 74 477 18839- 9. 2 0 5 18824+41. 1 12 51 a+19.6 2 7 18827-12.5 27 157 18840-20.6 26 180 18841+20.9 128 644 18832+20.2 77 429 18833-10.8 40 212 18842-23.1 81 290 18845- 5.6 11 52 18835-23.0 43 223 a

+17.3 8 39 18843-13.2 15 62 18844-24.8 3 20 18846-12.9 190 1037 18847-12. 5 150 744+44.8 7 28+15.1 25 143 Aug. 13.327+16.1 4 51 18839+• 4.0 0 31 18824

1882718841

(+6.5) 18840+24.3 35 214 18832-10.0 8 29 18833+39.9 7 19 18842-12.6 10 36 18845-20.9 79 339 18835+20.5 95 535 a+20.1 80 447 18848-11.3 35 289 18843-23.0 51 281 18844- 5.6 9 34 18847

continued 18846

A cluster of variable spots.A stream of small spots.

.

.

.

.

.

.

.

.•

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

501194362555398376761802898924

938845872720589395533239371533333329707658779807

982955852595698623393437567388396

.531

.

625492

.613•654

179.415.4

164.8161.8146.0149.133.775.675.588.8

(+14.9)244.5290.6289.4246.9213.8238.5199.7321.7198.1181.4177.7181.926.773.775.390.5

(+15.3)246.5288.8251.5250.3225.5217.5299.1221.1199.7211.4214.3187.910.369.294.373.3

A group of small spots, coalescing with theon August 14.A group of small variable -spots,a brief maximum on August 14.

100.97.94.89.87.89.64.46.36.32.

(88.153.145.149.130.108.107.99.97.94.88.87.88.61.47.36.34.

(75.151.149.131.109.108.99.96.92.87.87.88.80.66.47.37.35.

1384302909

D1705984099376394

5)7306385674715191

leader

in high northern

A regular spot, followed by a streamdisappears by August 17.

of variable

-23.5+17.2-13.9-25.3-12.8-12.4+44.5+15.4+15.8+ 3.6

(+6.5)-21.2+20.9+20.1-11.6-23.1- 5.7-23.6+16.9-14.1-25.5-12.8-12.6+44.8+15.5+15.5+ 3.4

(+6.6)-22.1+19.9-12.0-6.0-23.6-23.5+17.2-12.8-25.7-12.8-12.6-25.0+44.4+15.8+ 2.6+15.8

of Group

latitude,

companions

5295

11144111

21723

51716760565

4643

16154127

41840

286254

14942

15

10138124

79

241

6

330262567

899667

12123

1818

35947243932225825

332141675

880741

15107278

202381367

6396288

61886

836741

3229

1341016

18835

having

which

A pair of spots on August 10, developing into a small stream.A persistent small spot.Оле or two variable spots.A few tiny spots.

Page 53: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

RESULTS 1958 С 237

AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

цт Nfeasures

andGroup Rad. Fbs.

No. Dist. Ang.

1958 о

Aug. 14.328188241882718840188321883318835

a

1884518848188431403 i188441884718846

Aug. 15.6261884018849188321403J18835

a

188451884818850188431885118852188441403k1885318854188551885618837

Aug. 16.352188401884918832

Group 18849.Group 18850.Group 18851.Group 18852.Group 18853.

Group 18854.Group 1885.5.

Group 18856.Group 18857.

Group 18858.Group 18859.Group 18860.

(+15.7).990 290.2.942 254.8.814 234.7.732 228.3.570 290.4.526 231.5.541 233.1.642 216.3.601 209.9.619 356.3.400 176.3.302 56.0.462 94.7.477 68.8

(+16.1).943 241.6.822 247.3.847 235.5.677 273.9.725 245.3.735 245.4.773 229.1.696 224.3.500 241.2.657 341. 1. 273 278. 5. 554 194. 9.164 345.2.323 179.6.716 116.3. 803 83. 1.987 105.7.982 84.9.985 72.9

(+16.3).981 244.2.907 250.1.913 239.5

Aug. 15Aug. 15Aug. 15Aug. 15Aug. 15

Aug. 15Aug. 15

Aug. 15Aug. 15

Aug. 16Aug. 17Aug. 17

Position Area

о о

(62.3)145.130.108.98.96.87.

836912

88.587.81.65.60.47.34.34.

0558399

(45.2)110.96.95.88.87.88.85.77.71.62.61.54.47.45.4.

351.326.325.323.

(35.109.97.94.

- 16.- 19.- 16.- 17.- 24.

- 19.- 27.

- 22.- 28.

- 21.- 18.- 19.

2510533335037105888

5)939

(+ 6.6)+20.9 14 75-11.9 48 286-23. 5 67 341-23.6 40 303+17.0 2 7-13.1 197 1150-12.-9 173 1030-25. 1 26 204-25. 1 7 32+44. 5 38 192-16.9 1 5+16.1 33 131+ 3.7 2 15+15.8 1 10

(+6.7)-24.0 55 232-14.3 14 71-24. 4 56 504+ 7.6 1 6-12.7 179 1022-12.9 166 907-25.3 27 191-24. 1 1 11- 7.9 1 6+44.7 ' 6 50+ 8. 7 3 16-25. 7 3 19+15.8 13 81-12. 1 1 6-13.8 24 115+ 9. 6 0 2-14.2 48 215+ 6. 3 0 18+17.9 48 414

(+6.7)-23.6 36 209-14. 8 8 46-24.3 72 465

continued

цТ Nfeasures

andGroup Rad. Pos.

No. lust. Ang.

1958 о

Position

ling. Lat.

о о

Area

"*' Spots'

Aug. 16.352 continued18835

a188451885018851188431403118852188441403m188581885318854188551885618857

Aug. 17.3291883218835

a

18845188501885918843188521884418860188531885818854188551885618857

Aug. 18.64318835

a1884518850

.826

.832

.847

.654

.436

.695

.370

.617

.258

.252

.551

.594

.718

.956

.945

.949

.974

.930

.930

.934

.809

.730

.757

.684

.460

.500

.423

.400

.540

.876

.848

.855

.994

.994

.995

.959

249.1249.2233.5248.9275.7334.9286.7206.3308.0

10.156.5

122.783.6

107.984.473.3

(+16.7)243.1252.6252.6238.1254.9275.1326.6224.1291.1231.9140.9

42.782.7

111.185.473.4

(+17.0)255.4255.4242.3259.5

87.788.384.573.461.460.156.753.347.632.85.64.8

349.4325.4324.2323.0

(22.6)94.688.288.284.874.569.758.453.848.946.26.85.5

349.8325.1324.4323.5

(5.3)86.986.985.177.4

-13.1-13.2-25.9- 8.3+ 8.5+45.0+12.3-27.1+15.7+21.0+23.5-12.9+ 9.2-14.8+ 7.5+17.9

(+6.8)-24.2-13.4-13.4-26.5- 8 0+ 8.3+44.8-23.5+15.6-11.7-12.5+23.6+ 9.7-14.7+ 7.5+17.7

(+ 6.8)-13.6-13.6-26.6- 8.2

20819136111806

1315

36128224

136

76153151

12802141

3526106721

110

92923425

9358531744110558

16528

13231

53449107945

35273772418229576

205

1497553

33374

910

60160122092

continued

A small spot, forming immediatelyA stream of smallA small spot.A few small spots.

spots.preceding

A scattered stream, led by a regularcomponents die outappear, forming aview.A stream of smallA- variable group,spot.

by August 20.spot.

On Augustnew stream which is

spots.

Group 18835.

The following22 further spots

growing as it

of which the principal component

passes from

is a composite

A cluster of variable spots.A large compact stream, which breakslimb.

up as it approaches the west

A pair of spots, of which only the leader remains by AugustA few tiny spots.A few tiny spots.

20.

Page 54: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 238 ROYAL OBSERVÁfÓRY^lítírKT^a-

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN

и.т.and

GroupГЬ.

1958

measures

Rid. Pos.Dist. Ang.

о

res

Long,

о

iticn Area

TO* IM, WeleLat. Uib. Sfata

о

Aug. 18. Mi continued188591884318860188531885818854188SS18856188571886118862

Aug. 19.3811885018843188601885318858188541885518856188571886118862

Aug. 20.64618853188581404a1885518856188571886318861188621404b188641886518865

Aug. 21.39218853188581885618855

Group 18861Group 18862

Group 18863Group 18864

Group 18865Group 18866

Group 18867

Group 18868Group 18869Group 18870

. 895 276. 2

.859 320.9

. 703 246. 4

. 336 182. 7

.290 1.0

.249 79.0

.710 118.8

.652 87.6

.681 71.1

.935 70.7

.975 110.2

(-1-17.3).985 260.1.904 318.6.804 250.6.390 212.7.325 332.7.071 54.9. 596 125. 5.512 88.6. 560 68. 1. 868 70. 3.926 112.7

(+17.7). 581 238. 5. 503 305. 5.681 198.4.426 147.7.235 96.0. 324 54. 1.719 127.1.708 67.5.791 119.2.853 62.1.961 82.8.963 73.4. 993 80. 1

(+18.0).696 245.2.617 298.8.045 1117.0.371 170.6

. Aug. 18

. Aug. 18

. Aug. 20

. Aug. 20

. Aug. 20

. Aug. 20

. Aug. 21

. Aug. 22

. Aug. 24

69.56.46.6.5.

351.325.

2622004

324.5322.295.291.

(355.74.55.45.

7.4.

352.325.324.322.295.291.

925

5)12998166618

(338.8)9.5.

353.325.325.322.301.294.292.281.264.263.254.

(328.8.4.

325.325.

- 24.- 29.

- 21.- 28.

- 23.- 31.

- 28.

- 23.- 29.

1173393640337

9)9763

+ 8.6 0 12+46. 1 2 9-11.2 9 25-12.7 31 199+23. 6 19 56+ 9. 3 7 26-14.7 47 319+ 6. 7 6 39+17.8 169 1134+20.4 19 74-17.9 11 95

(+6.8)- 8. 5 0 20+46.3 0 8-11.1 0 9-12.4 25 157+23. 5 9 36+ 9. 1 2 10-14. 3 42 252+ 6. 5 4 23+17. 8 149 1236+20.4 25 116-18.0 21 167

(+ 6.9)-И. 7 25 109+23. 1 3 8-33. 4 1 10-14. 3 39 203+ 5. 3 1 8+17.6 189 1381-20. 2 1 13+20.7 13 53-17. 9 35 197+27. 3 0 7+ 8.8 0 12+17.8 13 38+10.6 0 28

(+6.9)-11.7 19 115+22. 9 0 4+ 5.7 2 14-14. 5 40 251

continued

U.T.and

GroupNo.

1958

Aug. 21.3921885718863188611886218864188651886618867

Aug. 22.4091886818853188561885518857188621886118864188651886618867

iffiasures

Rad. Pos.tust. Ang.

о

reel

Img.

0

cicn

Let.

о

Area

¥T_i Wrole"*• Spots

continued.223.615.587.693.870.907.968.991

.839

.807

. 188

.400

.219.516.431.740.791.876.934

Aug. 23.32618868188531404с188551885718862188611404d18864188651886618867

Aug. 24.31418853188551885718869188621886118864188661886718870

.927

.906

.687

.512

.35.4

.425

.268

.299

.575

.656

.752

.842

.978

.658

.548

.376

.421

.243

.384

.587

.704

.985

30.2135.864.2

125.383.673.482.798.7

(+18.3)297.3250.1256.9204.9328.9141.256.984.572.784.0

100.8

(+18.6)294.8254.0296.2225.1302.2164.0

ЗОЛ81.685.070.483.7

103.6

(+18.9)256.7237.3291.5312.7193.5342.185.383.7

107.7101.7

322.2301.9294.7292.5268.1263.1252.9247.9

(315.5)11.86.1

326.0325.5322.3295.8293.0267.5263.2254.0248.1

(303.4)11.95.8

345.2325.3321.6296.4295.2286.0268.2263.0254.3248.0

(290.3)6.2

325.2322.5307.5296.2294.8267.7254.2248.0212.1

+17.9-19.9+20.5-18.0+ 9.0+17.9+ 8.8- 7.6

(+ 7.0)+26.6-11.5+ 4.5-14.3+17.7-17.0+20.1+ 8.7+17.9+ 8.6-7.4

(+ 7.0)+25.5-11.2+22.9-14.6+17.5-17.1+20.2+ 9.2+ 8.6+18.1+ 9.4- 7.5

(+ 7.0)-11.4-15.1+17.5+21.4-17.1+20.3+ 8.3+ 9.4- 7.2-10.1

20317

1730

23118

568

037

112256

516

2622

057

132

1232035

540

1418

20308727323

37151425

14636

55187119

1723083

21270

9201

1192132

SO261

13183108

5373

9177

1128219

2827

3535

8989

208189

101016018420

2436985

262

A group of variable spots.A stream of spots,by August 27.

of which the intermediate components disappear

Ohé or two tiny spots.A variable stream,and 27.A small spot.A persistent smallAugust 30.

of which only the

spot with variable

A regular spot. Numerous faint

. Aug. 24 -Sept. 5.

August 25.Two or three tinyA bi -polar group,

spots.

leader is seen on August

'companions, notably

following companions

forming west of theA regular spot, with one or two

central

appear

on

26

after

meridian.companions .

Page 55: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 239

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

Rcasures rbeitien лгеа

Group Rad. Ров. т т ,„ Vhole№. Dist. Ang. "**• Utl "*• Spots

1958

Aug. 25.5991404*188551885718869188621404t1886418866188671404g1887018871

Aug. 26.3431885518857188691886218864188661886718870188721887118873

Aug. 27.33318855188571886918874188621886418866188671404h188701887218871188751887318876

Group 18871

Group 18872Group 18873Group 18874Group 18875

Group 18876Group 18877Group 18878Group 18879

Group 18880Group 18881Group 18882

o o

(+19.2) (273.3).987 236.8 347.7.828 246.5 324.9.750 287.4 321.8.598 296.0 308.4.537 220.6 294.7. 452 178. 1 274. 2.084 66.9 268.8.317 82.2 254.8.500 117.6 246.9.735 111.4 229.4.902 105.2 211.3.963 64.0 197.5

( +19. 5) ( 263. 5).906 250.8 325.1.849 285.6 322.0.710 292.3 307.9.639 230.5 294.6.155 280.1 272.3.143 69.0 255.7.384 130.0 246.3.824 107.6 210.7.925 102.5 197.7.918 63.5 196.4.957 60.2 189.3

(+19.7) (250.4).975 253.9 324.5.941 285.6 321.6.833 290.3 306.9.860 247.5 305.7.768 238.7 294.0.381 275.2 272.9. 127 299. 3 256. 8.268 161.4 245.5.169 51.5 242.6.683 113.1 210.9.794 105.3 200.0.815 61.5 197.0.852 75.3 191.5.889 59.3 188.1.956 104.9 179.8

. Aug. 2 5 -Sept .6.

. Aug. 26 -Sept. 5.

. Aug. 26 - 29.

. Aug. 27 - 28.

. Aug. 27 -Sept .6.

. Aug. 27 - 28.

. Aug. 28 - 29.

. Aug. 28 - 29

. Aug. 28 -Sept. 7.

. Aug. 28 -Sept. 5.

. Aug. 28 -Sept. 4.

. Aug.29-Sept.6.

О

(+7.1)-31. 1 15 103-14.9 27 171+17.7 130 751+21.3 115 583-17.4 66 393-19.6 1 5+ 9.0 21 131+ 9. 1 7 36- 7.0 8 43-10.4 0 4-10. 4 47 252+26.9 20 141

(+7.1)-14.0 37 229+17.0 tlfi 776+20.7 150 748-17.9 67 411+ 8.6 8 43+10.0 4 13- 7. 5 6 26-10. 2 46 267- 8.7 14 49+27. 1 38 196+30. 5 3 15

(+7.1)-13.9 51 391+17.0 118 936+20. 8 138 784-15. 2 4 16-18.4 39 221+ 8. 5 3 12+10.6 4 21- 7.6 6 36+13. 1 4 26-10.0 43 246- 7. 5 43 215+27.2 37 314+16. 2 9 59+30. 5 2 15-11.9 3 30

A cluster of spthe leading com

A compact streaiA few small spoOne or two tinyA pair of spotsthe most stableA small spot.A tiny spot.A few small spoAt f i r s t a few •September 1, wh<is seen on SeptiA small persistiA few small spoA stream of non

и.т.and

GroupNa.

19 SS

Aug. 28.3571885718874188691886218864188661886718877188781B87018872

а18871188751887318876188791888018881

Aug. 29.32718869188621886618877188781887018872

а

18871188751887318882188791888018881

Aug. 30. 5901404 i1886618870

Kfeasures

fed.Dist.

.990

.966

.925

.899

.538

.333

.339

.096

.209

.519

.635

.590

.676

.693

.772

.873

.852

.962

.986

.969

.981.553.308.278.372.446.418.534.532.620.644.755.886.932

.722

.689

.295

Pos.Ang.

о

(+20.0)287.3250.6290.2245.8274.9280.0205.0308.8167.0123.0110.8112.456.674.457.8

107.963.8

112.273.1

(+20.3)291.6250.7278.5284.1223.6141.4121.2123.549.971.153.5

112.660.7

115.473.7

(+20.6)271.6276.6190.2

Position

Long.

0

(236.9)320.3308.7305.3296.3269.6256.3245.3241.2234.2210.8200.3203.7197.6193.1188.7179.0178.9166.7157.3

(224.1)301.3299.8257.8241.7235.1210.5201.6203.6197.1192.7190.1187.3176.9166.7154.5

(207.4)253.7251.2210.4

Lat.

о

(+7.1)+18.1-16.6+21.3-18.1+ 8.6+10.0-10.8+10.5-4.6-10.0-7.3-7.0+27.3+15.8+29.1-11.8+25.9-19.0+16.6

(+7.1)+22.6-17.3+10.6+11.1- 4.6-9.9-6.7-6.7+26.4+16.0+27.5-8.6+26.6-18.5+17.7

(+7.2)+ 6.1+ 9.7-9.6

Area

Uib.

174

862743514

3478275421

459

166

4434116

2988565022

366

31610

45

54

«»leSpots

17827

6991872311398

2922539213124596212141

11947

26335517

738

23153732434216122

345258750

1439

231cont inued

Only

A pair of spots, developing into a stream, of which the leader isnponent.

iable spots. Fresh activity occurs onSeptember 1, when the group becomes a stream. Only the followeris seen on September 7.A small persistent spot, with a companion on September 1.A few small spots.A stream of normal type, which grows rapidly. The follower breaksup and dies out before reaching the west limb.

Page 56: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 240 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

Measures Position Area 11 yand

Group Rad. Pos.Nb. Dist. Ang.

1958 o

Img.

о

Aug. 30.590 continued18872

a1887118875188821887918883188841888018881

Aug. 31.318188661887018872

a

1887118875188821887918883188841888018881

Sept. 1.3911887018872

a

1887518871188821887918883188841888018881188851888618887

Sept. 2.6401887018872

a

Group 18883Group 18884

.251

.240

.380

.260

.435

.542

.688

.701

.743

.799

.848

.359

.248

.253

.336

.153

.311

.458

.631

.610

.647

.698

.520

.381

.409

.229

.374

.291

.352

.535

.515

.514

.518

.825

.967

.986

159.4165.129.955.2

127.350.4

135.443.2

123.673.1

(+20.8)276.7217.0196.5204.4

6.918.7

149.740.4

142.837.4

130.872.1

(+21.1)238.3232.7237.7303.7334.9197.314.1

161.321.1

146.468.681.2

110.5117.9

( +21. 4).716.601.632

249.6249.6251.8

202.3203.9195.3194.7187.0179.7175.8170.9166.7154.2

(197.8)256.2210.4201.8203.8195.2194.9188.7178.4173.3170.9166.8153.8

(183.6)210.1201.3203.8194.9193.8188.6178.1172.9170.5166.2153.4127.6111.8108.2

( 167. 1)209.7201.5204.0

. Aug. 30 -Sept. 1.

. Aug. 30 -Sept. 8.

о 1958

Sept. 2.640-6.4 111 620 18875-6.1 78 423 18871+26.2 54 321 18882+15.5 68 447 18879- 8. 5 156 956 18884+26.5 4 24 18880-23.1 7 27 18881+36.5 5 22 18885-18.8 18 75 18886+17.8 11 65 18887

1888818889

(+7.2)+ 9. 5 2 10- 9.6 43 199 Sept. 3.325-6.5 118 733 18870- 6. 1 81 405 18872+26.6 48 321 a+15.5 39 407 18875-8.4 116 685 18871+27.2 2 7 18882-23.6 1 10 18879+35.4 26 186 18884-18.8 13 62 18880+17.6 13 59 18881

' 1888518886

(+7.2) 18887-9.4 37 187 18888-6.4 150 838 18889- 5.9 78 483 18890+14.4 78 550 18891+26.8 30 184 18892-8.9 118 643+27.0 13 90-23.3 1 5 Sep.. 4. 375+35.6 33 186 18870-18.4 12 48 18872+17.1 4 25 a+11.3 2 20 18875-17.7 4 39 18871-25.9 15 88 18882

1887918884

(+7.2) 18880- 9- 1 38 210 18881-6.1 196 1204 18885- 5.6 122 710 18886

continued

One or two tiny spots.

Rad.Dis t.

Pos.Ang.

о

Lang.

о

Let. Uib. S£k

о

continued.486.513.465.385.478.441.288.632.870.918.962.989

.815

.708

.745

.605

.613

.577

.473

.506

.459

.216

.508

.791

.863

.909

.959

.965

.987

.996

.928

.859

.883

.782

.774

.765

.621

.610

.555

.224

.276

.650

285.2311.4235.0334.2354.6177.650.481.0

115.2122.4107.3105.5

(+21.6)253.0253.3255.6283.3305.1242.6318.6338.3196.628.079.8

119.0126.0109.5106.999.273.499.8

(+21.8)256.6258.2259.4281.9298.1251.2306.3321.5219.3323.872.2

128.4

195.8192.4189.7177.9170.3166.0153.7127.8111.5107.895.988.1

( 158. 1)210.1200.9204.4195.2192.1189.2178.7171.2166.0152.0127.6111.7107.396.187.484.775.874.7

( 144. 2)210.2201.8204.7196.0193.5191.3178.4171.7165.9152.1128.7112.0

+13.7+26.3-8.8+27.3+35.4-18.7+17.5+11.2-17.8-25.9-14.4-14.1

(+7.2)-9.4-6.4- 5.7+13.8+26.6-9.1+27.5+35.0-18.9+18.1+11.4-17.6-26.0-14.3-13.9-6.9+17.5-9.0

(+7.2)-9.6-6.3- 5.9+13.8+26.2-9.4+27.5+34.9-18.7+17.5+11.8-17.7

13353604529936

19181623

3418412614341506023

439

1111174751330

4015611013022465119110

229

878216456283149371437958286

276

2051024

591834238377311122

2223666651

144252510282

37

2179835977091372362709720

78237

continued

A short stream, of which the leader is a regular spot ; thefollower dies out a f ter September 3.

Group 18885Group 18886Group 18887Group 18888

Group 18889

Group 18890Group 18891Group 18892

.

.

.

.

Sept.Sept.Sept.Sept.

Sept.

Sept.Sept.Sept .

1112

2

333

- 6.- 4.- 6.- 12.

- 14.

- 14.- 14.- 11.

A stream of small spots.A single spot on September 1;A small spot.A regular spot, with a distantSeptember 5. On September 10

a pair thereafter.

following companion untilit begins to break up.

A regular spot. On September 6. other spots appear, formingvariable cluster.A variable cluster, which becomes aA variable stream.A small spot, which breaks up

a

compact stream by September 11

on September 10.

Page 57: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 241

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

GroupNb.

. 1958

Msasures

Rad. R».Dist. Ang.

о

Rjsition Area

Long.

0

**• "*• sK

о

Sept. 4.375 continued188871888818889188901889118892

Sept. 5.3211887018872

a1887518871188821887918884188801889318885188871888818889188901889118892

Sept. 6. 58818875188711888218879188841889418893188851888718888188951888918890188911889218896

Sept. 7.5561887918884

Group 18893

Group 18894Group 18895

.763 133.6

.777 115.0

.870 110.6

.880 102.7

.929 73.4

.951 100.9

(+22.1).985 258.9.945 260.6.959 261.6.888 281.9.875 296.2.886 254.9.739 302.0.715 313.5.676 232.1.316 274.7.117 37.9.664 143.9.624 123.4.756 115.3.755 107.1.844 72.8.868 103.3

(+22.4).981 282.8.973 295.6.985 258.2.880 298.5.846 306.8.785 253.4. 582 274. 2.228 292.8.570 164.0.440 144.6.331 82.2.590 126.6.549 117.2.664 70.3.700 108.8.969 71.9

(+22.6).950 297.8.920 304.8

. Sept. 5

. Sept. 6

. Sept . 6

106.497.887.484.475.073.9

(131.7)210.1201.2203.9194.9192.6191.7176.7170.9165.8150.2127.5106.099.487.285.173.873.4

(П5.0)195.0193.3193.2176.3170.3164.3150.8127.4105.099.895.785.985.674.073.238.0

(102.2)175.1168.8

- 8.

- 8.- 13.

-26.0 7 18-14.2 29 166-13.9 36 252- 7.6 61 342+18. 1 58 384- 8.0 14 69

(+7.2)- 9.6 25 228-6.4 131 843- 5.9 99 600+13. 8 83 584+26.3 21 114- 9. 8 32 259+28. 2 42 215+35.1 21 118-18.5 3 11+ 8.3 31 127+12.4 18 89-25.9 3 13-14.0 21 124-Í3.8 33 261-7.9 73 340+18.4 70 352- 7. 8 9 86

(+7 .2 )+13.9 32 283+26.5 19 121-10.3 45 325+28.4 12 69+34.7 15 61- 8. 3 13 57+ 8.3 U 56+12. 1 4 27-26.0 1 9-13.9 15 99+ 9.3 9 50-14.3 48 302- 8. 2 64 425+18.4 43 267- 7.7 13 52+19. 3 22 196

(+7.2)+28.6 3 28+34.8 9 52

continued

A pair of spots onSeptember 7 and 8.

U.T.and

GroupNo.

1958Sep. 7.556

188941889318888188951889018889188921889118896

Sept. 8.3411888418894188931404 j1888818890188891889218891188961404k18897

Sept. 9.35118888188951889018889188921889118898188961889718899

Sept. 10. 33718888188951889018889188921889118898188961890018897

Measures

Rad.Dist.

Fbs.A«.

о

Fbsition

lang.

0

let.

0

Area

Uib. «nieSpots

continued.901.776.359.089.376.460.535.506.937

.963

.962

.880

.656

.385

.283

.386

.402

.363

.855

.964

.976

.506

.317

.306

.398

.270

.221

.412

.711

.923

.936

.656

.514

.469

.528

.284

.237

.182

.544

.760

.815

256.9275.0174.470.4

133.6141.9116.665.069.2

(+22.7) (304.5259.1275.8280.4202.7161.5162.3128.5

56.768.980.9

101.2

(+23.0) (226.8277.3210.1199.0160.023.880.467.2

104.675.6

(+23.2) (240.2276.0235.4222.8210.8328.7

73.662.4

127.1108.5

164.5153.4100.197.486.385.273.573.431.7

91.8)167.2164.2153.8132.9100.686.684.973.473.232.916.416.2

78.5)100.797.087.486.273.273.154.234.113.58.2

65.5)101.196.688.487.373.972.955.334.624.913.9

-8.5+ 8.4-13.7+ 8.9-8.0-14.3-7.5+18.6+22.0

(+7.2)+35.0-8.3+ 8.5+12.2-13.6-8.3-14.3-7.6+18.3+21.7+10.7-9.2

(+7.2)-13.5+ 9.1-8.2-14.9- 7.4+18.8+10.5+21.1-10.4+16.0

(+7.2)-13.1+ 9.3-8.7-16.0-6.9+18.8+10.0+20.7-21.8-10.5

244

161

5154

54583

941

21

1639613

7378

011

10114678

494

175253

12187596

1671273

238

18820806

370380

25239766

46232

179

95264426

18398524

1376

7646

29052221

4333

553105

10

5939

625528

7339

57347

496

continued

September 5 and 6 ; only the leader remains on

A small stream, forming near the west limb.A few small spots, not seen on September 8. From September 9 thégroup is represented by a short stream.

Group 18896

Group 18897

Group 18898Group 18899Group 18900

. Sept. 6

. Sept. 8

. Sept. 9

. Sept. 9

. Sept. 10

- 16.

- 20.

- 12.- 10.- 18.

A bi -polar stream.September 15 and 16A variable stream,by September 14.

Oily tne leading

in the rear

components are seen

part of which a composite

on

spot forms

A short -lived stream.A tiny spot.A single spot on September 10 and 12, not seen onThe group then develops into a short stream.

September 11.

Page 58: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 242 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U-T> Masures

andGroup Rad. Pos.

No. Dist. Ang.

1958 о

Sept. 10.337 continued18899 .830 76.018901 .844 80.218902 .909 121.418903 .917 103.818904 .995 125.418905 .996 121.218906 .988 76.7

Sept. 11.379 (+23.3)18888 .813 248.018895 .712 275.918890 .654 248.318889 .680 237.618892 .442 238.518891 .410 300.118898 .085 301.518907 .342 150.118896 .380 49.114041 .528 118.718897 .688 113.318901 .666 80.318902 .814 127.218903 .796 107.518904 .964 128.718905 .958 123.918906 .924 77.718908 .944 57.518909 .961 75.518910 .984 103.7

Sept. 12.310 (+23.5)18888 .919 251.718895 .848 276.918890 .794 254.318889 .807 245.918891 .564 293.318898 .286 279.918907 .299 194.718896 .251 17.318900 . 537 153. 318897 . 544 121. 718901 .533 79.0

Group 18901. Sept. 10Group 18902. Sept. 10Group 18903. Sept. 10

Group 18904. Sept. 10Group 18905. Sept. 10

Group 18906. Sept. 10Group 18907. Sept. 11Group 18908. Sept. 11Group 18909. Sept. 11

Group 18910. Sept. 11Group 18911. Sept. 12Group 18912. Sept. 13

Group 18913. Sept. 14

rasj

long.

о

9.07.87.11.1

347.6345.9343.2

( 51.7)102.397.489.488.173.973.655.941.833.823.911.99.86.41.6

346.3345.8343.4340.4336.7334.1

( 39.4)103.197.889.788.872.555.943.834.824.411.57.2

- 15.- 11.• 18.

• 22.- 22.

• 22.- 17.- 14.- 23.

- 13.- 24.- 25.

- 15.

.tien Area UT №asures Position Area

«• «" S£ €* S. 5: i-* i-, u*. *aо 1958 o o o

Sept. 12.310 continued+15.6 2 13 18903 .642 112.7 2.8 -8.6 1 7+12.1 8 25 18904 .912 132.7 345.6 -34.1 60 345-24.6 8 17 18905 .897 127.9 345.3 -29.3 30 339-9.6 2 9 18906 .825 77.7 343.4 +14.2 28 169-34.0 24 196 18908 .874 55.9 339.9 +33.1 5 18-30.0 0 133 18910 .920 106.2 335.1 -11.8 6 22+14.2 22 113 18909 .925 75.9 330.9 +15.7 55 269

18911 .981 108.1 323.5 -16.1 92 567

(+7.2)-13.2 14 73 Sept. 13. 574 (+23.8) ( 2 2 . 7) (+7. 2)+ 9.2 24 175 18895 .965 278.2 98.1 +9.7 15 136-8.3 187 1047 18890 .930 258.4 89.3 -7.9 145 880-15.5 77 570 18889 .933 251.9 88.5 -13.9 51 322-6.6 1 10 18891 .765 289.3 72.4 +19.3 14 80+18.5 33 117 1404m .404 299.0 44.4 +18.0 3 20+ 9.7 10 57 18907 .450 232.0 43.7 -9.3 2 20-10.1 0 4 18896 .300 328.6 32.4 +21.9 20 113+21.2 60 349 18900 .489 183.4 24.5 -21.9 11 33-8.3 1 9 18897 .380 142.6 9.2 -10.5 92 539-10.3 30 119 18901 .292 71.8 6.3 +12.1 2 13+11.8 1 21 18905 .777 137.8 346.1 -29.3 73 384-24.5 2 8 18904 .822 141.0 344.2 -34.1 66 315-9.3 4 11 18906 .639 76.5 343.0 +14.1 32 165-34.3 80 352 18908 .745 51.0 339.1 +33.2 2 8-29.5 31 203 18910 .777 111.6 335.3 -11.8 2 13+14.1 32 199 18909 .780 76.2 331.2 +15.2 61 532+33.0 8 30 18911 .891 111.4 323.5 -15.4 81 469+15.8 13 99 18912 .988 108.9 304.7 -17.3 158 1008-12.0 0 74

Sept. 14.572 (+24.0) ( 9. 6) (+7. 2)(+7.2) 18889 .991 254.2 89.6 -14.5 32 235-13.7 3 29 18890 .986 260.2 88.4 -8.3 58 487+ 9.7 38 221 18891 .878 288.8 71.5 +19.9 4 47-7.8 141 1013 18907 .613 244.8 .43.6 -9.1 24 133-14.6 82 487 18896 .436 305.5 31.9 +21.3 11 87+18.9 37 141 18900 .540 206.6 24.6 -21.8 15 73+ 9.7 1 37 18913 .161 312.2 16.6 +13.4 2 35-9.6 5 28 18897 .303 179.8 9.5 -10.4 73 510+21.0 57 334 18901 .126 53.6 3.7 +11.4 0 7-21.6 3 7 18903 .289 150.1 1.3 -7.4 7 29-10.2 41 214 18905 .689 148.8 345.5 -29.5 67 327+11.9 12 51 18904 .744 150.7 343.7 -33.9 49 256

continued continued

A group of small variable spots.A small spot.A single spot until September 12; not seen on September 13. OnSeptember 14 a cluster of small spots appears in the same area.A regular spot.A regular spot. A preceding companion appears on September 12 andslowly moves away in longitude, dying out by September 20.A regular spot.A single spot on September 11, developing into a short stream.A small spot.A stream of small spots, of which the leading components coalesceinto a regular spot which is the sole survivor on September 21.A small spot.A pair of regular spots, with a few variable companions.A large composite spot, of which the leading part becomes detachedand assumes a regular outline by September 20. There is also asmall regular spot to the rear throughout the disk passage.A few small spots.

Page 59: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 243

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY OF THE YEAR

и.т.and

GroupNo.

1958

Sept. U.1890618908Î8909189111891218914

ftfeesures Position

Rad. Poe.Dis t. Aig.

о

572 continued.453 72.8.628 43.7.620 74.2.781 116.0.939 111.5.961 66.6

Long.

о

343.2338.5331.5323.1303.6294.3

Sept. 15.492 (+24.1) (357.4)18907189151889618900189161891318897189011890318905189061890418909189111891218914

Sept. 16.189071891518896189001891618897189031890518906189041890918911189171891218914

Sept. 17.189071891518900188971890318905

.758 251.3

.715 315.0

.615 295.3

.636 221.5

.513 235.6

.321 292.7

.365 210.6

.184 300.1

.271 200.9

.626 162.7

. 269 62. 5

.687 162.4

.465 70.3

.654 122.6

.855 115.7

.879 67.7

522 («4.3).880 256.2.840 308.7.777 291.5.759 232.9.694 247.0.511 233.7.411 233.5.600 181.0. 125 4. 3.659 177.9.252 50.7.501 136.7.462 61.3.735 122.1.773 65.7

326 (+24.4).937 258.1.917 305.0.849 238.4.641 243.8.568 247.0.622 195.8

43.835.933.824.322.815.18.36.73.0

345.1343.2343.0330.5323.8303.7295.6

(343.8)43.437.734.424.324.18.53.2

344.5343.2342.1332.1323.1318.5303.2293.9

(333.2)41.039.224.28.94.8

344.4

Lat.

о

+14.1+33.2+15.4-15.1-17.3+24.4

(+7.2)-9.1+36.0+21.0-22.0-10.3+13.9-11.1+12.4-7.4-29.5+14.1-33.8+15.4-14.7-17.6+23.0

(+7.2)-8.5+36.0+21.2-21.8-10.2-11.0-7.4-29.5+14.3-33.8+16.2-14.5+19.3-17.5+23.3

(+7.2)-8.5+34.8-21.9-10.6-6.7-29.6

Area

.*• nhole"*• Spots

32 1610 4

58 452107 552231 1358

3 20

19 1441 67 38

15 720 120 5

77 3230 58 35

60 34627 15161 28334 190

101 480259 1460

17 77

9 316 440 16

17 880 25

52 3057 28

49 34040 17350 27851 29199 480

1 23269 1824

12 70

3 165 31

15 10255 275

2 1562 288

U.T.and

GroupNo.

1958

Sept. 17.32618906189041405a18909189111891718912189141891818919

Sept. 18.3311890018897189031405b18906189051890418909189111891218914189381892018919

Sept. 19.5451889718906189051890418909189111891218914140Sc1892018919

Sept. 20.6471889718906189051890418909189111891218914

№asures

Rad.Tuât.

Pos.Ang.

o

Position

Lang.

o

Lat.

o

Area

Uib. »DieSpots

continued.213.671.285.169.418.359.619.655.792.956

.936

.780

.736

.539

.413

.678

.720

.295

.378

.497

.489

.641

.745

.845

.926

.644

.789

.810

.499

.466

.418

.300

.570

.573

.639

.977

.811

.876

.892

.707

.610

.472

.290

305.8190.6198.5359.6153.550.5

130.562.687.478.2

(+24.6)242.7250.2253.9315.1289.1209.2204.6306.4182.8146.454.987.0

123.480.6

(+24.8)255.4283.4223.4217.2290.9217.3177.027.4

153.1137.081.5

(+24.9)257.1281.9230.3224.7286.3233.7208.2342.9

343.4341.7338.4333.3322.1316.1303.8294.1280.6259.4

(319.9)23.88.05.1

345. 5343.5342.2341.1334.2321.0303.2294.3279.9279.0261.7

(303.9)9.4

343.9342.3340.2332.8320.8302.6295.3287.6279.7264.0

(289.4)5.1

344.0340.1339.2334.3319.9302.9294.7

+14.2-34.0-8.5+16.9-14.8+20.1-17.3+23.1+ 6.5+13.4

(+7.1)-22.4-10.5-6.8+28.8+14.3-29.6-34.2+16.9-15.0-17.6+22.7+ 7.4-18.8+11.8

(+7.1)-10.6+14.1-29.4-34.5+16.4-14.9-17.5+22.4-23.6-18.2+10.8

(+7.1)-10.9+13.8-29.6-34.9+16.5-15.0-17.6+23.1

continued

GroupGroupGroupGroupGroupGroupGroup

18914. Sept. 1418915. Sept. 1518916. Sept. 1518917. Sept. 1618918. Sept. 1718919. Sept. 1718920. Sept. 18

- 26.- 17.- 16.- 17.- 18.- 24.- 19.

A variable streamA fewA fewTwo orOne or

small spots.faint spots.three tiny

29481

63950

2702173

2329

12

2847394573

2623512

12

272532403678

2113612

19

93214202787

20023

155288

7368479

61775

902015

112197

817

136201236282415

1705205

77

64

130139164226182409

1268166

915

101

46196109206121461

1137152

continued

of small spots.

spots.two tiny spots.

A stream of small spots.A small spot.

Page 60: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 244 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

GroupNb.

1958

Measures t-bsj

Rad. Fbs. T

ttst. Ang. Ix3n8'

0 0

Sept. 20.647 continued18919189211892218923

Sept. 21.5541890618905189041890918911189121891418919189211892218923

Sept. 22.347189061890518904189091891118912189141892418919189211405d189221892318925

Sept. 23.336189091891118912189141892418919

Group 18921Group 18922Group 18923

Group 18924Group 18925Group 18926

Group 18927Group 18928Group 18929Group 18930Group 18931

Group 18932

.405 80.1 265.6

.593 75.3 253.3

.985 99.3 210.8

.992 95.8 204.0

(+25.1) (277.4).909 281.9 343.4.941 234.9 339.5.946 229.3 338.0.840 285.1 334.9.750 242.3 320.7.585 225.6 303.3.390 317.3 294.1.226 71.7 264.8.419 70.9 253.4.929 101.3 210.8. 946 96. 5 207. 3

(+25.2) (266.9).968 282.2 343.4.980 237.4 339.0.980 232.1 337.3.921 285.0 334.7.849 246.8 320.7.687 234.8 302.9.535 301.8 296.2.398 256.0 268.7.075 35.0 264.4.280 63.0 252.1.739 61.4 221.1.849 103.7 210.8. 873 98. 4 207. 2.985 109.7 190.1.978 110.6 192.4.992 108.5 187.0

(+25.3) (253.9).981 285.5 334.0.938 250.7 320.3. 810 242. 5 302. 5.701 294.6 297.2.451 328.3 269.6. 202 288. 1 265. 1

. Sept. 20 - 22.

. Sept. 20 -Oct. 2.

. Sept. 20 -Oct. 2.

. Sept. 22 - 23.

. Sept.22-Oct.4.

. Sept. 23 - 30.

. Sept. 23 - 27.

. Sept. 23 - 24.

. Sept. 23 -Oct. 5.

. Sept. 23 - 29.

. Sept. 23 -Oct. 5.

. Sept. 24 -Oct. 1.

Ltion Area ж т ^

and

т„* IM, 4hole GrouPLat. Utb. gp^g №

о 1958

Sept. 23.336+10.5 16 95 UOSe+14.4 6 31 18926- 7. 8 20 96 18927- 4.8 34 191 18922

1892318928

(+7.1) 18925+13.8 24 131 a-29.6 13 88 Ь-34.8 47 217 18929+16.5 20 85 18930-15.2 70 392 18931-17.8 210 1200+23.4 36 265+11.0 19 138 Sept. 24.322+14.4 2 15 18911-7.7 21 111 18912-3.7 87 486 18914

1891918926

(+7.0) 18927+13.5 14 123 18922-29.9 22 128 18923-34.9 27 194 18928+16.5 18 109 18925-15.4 75 386 a-17.6 209 1087 Ь+22.4 79 401 18929+30.3 8 28 18930+10.5 30 153 18932+14.1 1 8 18931+25.6 0 8-7.7 ' 21 112- 3.8 102 502 Sept. 25.321-17.9 114 743 18912-18.4 80 407 18914-17.2 34 336 18926

1892718922

(+7.0) 18923+16.5 5 28 18925-15.3 78 473 a-17.3 182 1072 Ь+22.1 60 436 18929+29.2 1 5 18930+10.4 13 87 18932

continued 18931

One or two small spots.

Measures rositicn Area

Rad. Fbs. »»leDist. Arg. ""* Ut' "*' Spots

0 0 0

continued.182 34.9 247.7 +15.5 0.416 18.1 245.3 +30.1 1.480 129.1 231.7 -11.1 2.115 107.9 210.7 -7.6 21.742 101.3 207.3 - 3.6 100.876 51.7 195.2 +36.6 4.925 112.5 190.3 -17.7 87.913 113.3 192.3 -17.9 46.945 111.1 186.7 -17.3 41.967 72.5 177.4 +18.7 4.994 95.5 171.1 -4.6 0.995 99.1 171.1 -8.2 0

(+25.4) (240.8) (+7.0).982 251.2 316.8 -16.9 23.917 247.4 303.2 -17.5 212.827 291.8 296.4 +21.9 40.401 280.2 264.4 +10.5 6.392 352.0 244.4 +29.7 27.360 151.5 230 7 -11.5 10.553 115.1 210.6 -7.5 23.593 107.2 206.3 -4.3 98.787 48.6 194.0 +36.2 2.833 116.8 189.7 -17.7 101.818 118.1 191.6 -18.1 64.860 115.1 186.3 -17.3 37.874 72.6 179.4 +18.6 30.942 98.6 171.6 -5.7 16.962 115.6 171.5 -22.2 11.958 103.1 169.5 -10.4 46

(+25.5) (227.9) (+7.0).983 250.7 304.1 -17.4 150.909 292.0 293.7 +22.8 33.462 329.5 243.6 +30.1 66.325 191.8 231.8 -11.5 8.384 129.8 210.7 -7.5 18.419 118.1 206.2 -4.8 62.713 123.8 189.6 -17.8 117.697 125.7 191.5 -18.3 57.737 121.3 186.8 -17.2 60.768 71.6 177.9 +18.5 42.849 102.1 171.5 -6.4 19.900 120.0 170.2 -23.1 26.893 105.9 167.1 -10.8 73

656

11851911

730401329

81867

117778344

3712340

121488

765834231612512248

297

108527832549

109394641343298185147151386

A regular spot, with distant companions on September 27 and 28.A regular spot, with a number of variable companions untilSeptember 26.One or two small spots.A pair of regular spots, with one or two companions.A stream, of which the followerSeptember 29.Che or two small spots.A tiny spot.A stream, led by a regular spot

is the sole survivor from

which alone remains on October 1.A stream of small spots.A stream, the leader of which becomes a regular spot and coalesceswith the remainder of the group to form a composite structure.A stream of variable spots.

Page 61: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 19se С 245

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

и.т.and

GroupNb.

1958

Sept. 26.450189141405/1892618927189221892318925

ab

189291893018932189311893318934

Sept. 27.324189261892718935189221892318925

1893618929189321893018931189331893718934

Sept. 28.3201892618935189221892318925

ab

189361892918930

№asures

Rad.Ois t.

.984

.602

.586

.452

.248

.239

.564

.551

.591

.581

.681

.764

.779

.861

.965

.695

.617

.442

.288

.223

.471

.463

.497

.437.418.648.531.647.715.818.890

.802

.636

.446

.363

.428

.433

.422

.308

.225

.353

Pos.Ang.

o

(+25.6)292.8286.4315.1227.3170.2149.4137.2139.5132.967.8

106.0127.0110.283.1

107.7

(+25.7)308.1241.5287.3212.9200.1153.4157.1148.4132.360.2

136.9. 113. 1

115.784.360.1

109.6

(+25.8)305.0283.3237.8235.0180.6184.0174.2163.831.2

127.4

Position

Long.

0

(212.8)294.3249.4241.4232.5210.4205.8189.1190.8185.9178.4171.8171.8164.9153.0141.1

(201.2)240.5234.6226.8210.2205.6188.4190.3185.3182.1178.8172.8171.9165.0155.3147.8141.6

( 188. 1)238.5227.5210.4205.4188.4189.9185.5183.1181.1171.8

Lat.

0

(+6.9)+23.6+15.3+30.5-11.3-7.2-4.9-18.1-18.3-17.5+18.4- 5.6-22.1-11.0+ 9.4-15.0

(+6.9)+30.7-11.3+13.8-7.1- 5.2-18.1-18.4-18.3-10.5+18.3-22.1-6.0-10.7+ 8.9+28.2-13.9

(+6.8)+31.8+13.7-7.4- 5.5-18.4-18.7-17.9-10.3+17.8- 5.8

Area

Uifa.

452

704

3171

1267551427

1468

90

5012

1972

12480443

47246

102452324

307

2163

10365382536

5

WholeSpots

39212

37918

1204136623922702353687

537448

2674

21108304587334253

142118333

56918313798

23354

12133456334122291

14920

continued

и.т.and

GroupNo.

1958

Sept. 28.3201893218931189331893718934

Sept. 29. 594189261893518922189231405618925

ab

18936189291893218930189311893318937189341893818939

Sept. 30.4841892618935189221892318925

ab

1405h1893618929189321893118933189371893818939189401894118942

Measures

rad. Fbe.Dist. Ang.

о

continued.551 150.4.488 126.2.532 83.4.691 55.2.781 114.6

(+25.9).909 304.3.822 281.9.655 250.7.592 250.3.348 290.8.505 212.5.524 215.0.477 208.3.360 213.3.251 322.1.494 181.9.219 175.9.316 161.3. 244 82. 2.516 38.9.619 125.3.872 110.2.963 100. 5

(+26.0).970 302.0.931 281.4.789 255.4.737 255.6.605 227.4.632 229.2. 576 225. 1.480 306.8.498 235.0.392 301.6.526 200.6.312 200.5.041 58.4.418 22.4.754 115.0.913 102.1.945 109.2.951 73.0.979 69.6

Position

Long.

0

171.1164.6155.9148.1141.1

(171.3)235.8227.0209.7205.2190.8187.9189.7185.0182.9180.6172.3170.4165.4157.2149.4139.9114.198.4

( 159. 5)236.8228.7209.6205.2187.3189.7184.8184.0183.9180.0171.0165.8157.5149.0115.095.391.886.579.7

lat.

о

-22.0-10.5+ 9.2+28.4-14.4

(+6.8)+33.9+13.7-7.1- 5.8+13.5-18.6-18.8-18.1-10.7+18.1-22.6- 5.7-10.6+ 8.5+29.9-15.1-13.9- 8.2

(+6.7)+32.6+13.0-7.2- 5.9-18.2-18.5-17.8+22.7-10.5+18.1-22.8-10.3+ 7.9+29.2-13.8-8.2-15.6+18.2+21.3

Area

Uib.

23912664

7

24102060

012183381637363

1084775605

03

1548

1006040

18

3212923663Î

143

290

WholeSpots

7151017037275

1023296

2953

50332417966

162127

12447195303261420

82094

332589318271

1034

179103436212418

218520

10431

Group 18933. Sept.26-Oct.5.

Group 18934.Group 18935.Group 18936.

Group 18937.

Group 18938.

Group 18939.Group 18940.Group 18941.Group 18942.

Sept. 26 - 29.Sept. 27 - 30.Sept.27-Oct.3.

Sept.27-Oct.7.

Sept.29-Oct.8.

Sept.29-Oct.7.Sept.30-Oct.4.Sept.30-Oct.4.Sept.30-Oct. 1.

A stream, of which the leader is a composite spot and the solesurvivor on October 4.A few small spots.A few small spots.A small stream, of which the leader alone remains fromSeptember 30.A stream, led by a composite spot, which becomes regular inoutline by October 3. The follower dies out by October 4.One or two unstable spots, developing into a small stream onOctober 5.A stream of small changing spots.A stream of small spots.A small spot.A small spot.

Page 62: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 246 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

Measures Position Area Msesures Position Areaand

Group Rad. Re.No. Dist. Arg.

1958 о

Oct. 1.321 (+26.0)18922 . 889 257. 918923 .850 258.618925 .719 236.2

a . 740 237. 2Ь .690 234.4

18936 .635 244.218943 .554 269.518929 .562 292.4140SÍ .493 244.41405 j .548 314.818932 .603 216.418944 .317 258.618931 .415 225.818933 .154 278.018937 .382 359.218938 .624 121.918939 .821 104.618940 .883 111.818941 .881 72.818942 .927 69.8

Oct. 2.522 (+26.1)18922 . 978 260. 718923 .961 261.718925 .862 244.4

a . 875 244. 9b .838 243.7

18936 .809 251.518943 .771 271.718929 .756 288.218944 . 564 265. 418931 .613 243.018933 .424 273.318945 .483 230.018937 .450 228.41405k . 508 148. 118938 . 477 138. 118946 . 474 78. 118939 .598 113.118940 .734 117.918941 .721 71.3

Oct. 3.438 (+26.2)18925 .942 248.0

a .950 248.2Ь .927 248.0

Group 18943. Oct. 1Group 18944. Oct. 1

Group 18945. Oct. 2Group 18946. Oct. 2Group 18947. Oct. 3

Group 18948. Oct. 3Group 18949. Oct. 3

Group 18950. Oct. 3Group 18951. Oct. 4

Group 18952. Oct. 5

о о 1958 o o o

(148.5) (+6.7) Oct. 3.438 continued209.5 -7.5 12 94 18936 .911 254.4 183.7 -11.2 2 13205.2 -6.0 70 328 18929 .871 287.0 181.4 +18.0 38 221187.4 -18.4 113 550 18944 .745 266.4 168.4 +1.8 43 365189.3 -18.5 70 320 18931 .756 250.0 166.6 -10.4 98 490184.6 -18.2 43 230 18933 .606 273.2 157.9 +7.2 20 125183.9 -10.5 3 12 18945 .647 242.4 156.3 ~12. 1 4 23182.1 + 5 . 2 1 4 18937 .574 314.1 148.6 +29.3 75 390181.5 +18.0 35 180 18938 .350 172.7 117.9 -13.6 4 8175.0 -6.3 1 11 18946 .298 71.5 Ю3.8 +11.8 11 58174.7 +28.7 0 5 18947 .341 121.4 103.6 -3.9 2 17171.2 -22.8 5 54 18948 .481 138.7 101.4 -14.9 1 9166.5 +2.8 12 77 18939 .485 120.2 95.6 - 8.0 10 95166.0 -10.4 76 506 18940 .608 125.2 89.7 -14.8 10 31157.3 +7.8 37 167 18941 .556 66.8 88.1 +18.2 4 10148.9 +29.1 73 396 18949 .985 73.6 39.2 +17.2 0 31115.6 -13.6 1 12 18950 .993 68.4 35.5 +22.1 0 10295.4 -7.9 14 7290.3 -15.7 40 20986.3 +18.3 14 97 Oct. 4.355 (+26.2) ( 108. 4) ( + 6. 5)79.9 +21.2 3 21 18925 .989 250.4 187.0 -18.2 52 446

18929 .947 286.8 180.6 +18.0 25 20618944 .869 267.9 168.5 +1.4 61 419

(132.6) (+6.6) 18931 .869 253.8 166.3 ~10.6 85 529209.2 -7.6 9 94 18933 .774 273.0 159.2 +6.4 14 69205.4 -6.1 64 327 18937 .694 305.8 148.3 +28.9 54 364187.2 -18.1 86 506 18938 .369 192.6 113.1 -14.5 2 10188.9 -18.2 56 319 18946 .105 35.8 104.8 +11.4 28 148184.5 -17.8 30 187 18947 .226 150.0 101.9 -4.8 6 39183.8 -10.7 2 9 18948 .394 163.3 101.7 -15.6 1 11183.2 +5.6 0 3 18939 .344 140.0 95.5 ~ 8.9 14 74181.4 +18.1 25 175 18940 .478 140.2 90.0 -15.2 4 20166.7 +2.9 28 180 18941 .376 57.4 89.1 +17.8 2 9166.2 -10.6 71 516 18949 .917 75.0 41.3 +16.3 2 16157.8 +7.4 24 210 18950 .950 69.4 35.6 +21.6 37 213154.7 -11.9 4 22 18951 .992 77.6 24.5 +13.1 34 187148.1 +28.8 76 456116.2 -19.1 1 9113.5 -14.5 0 4 Oct. 5.376 (+26.3) (95.0) (+6. 5)104.5 +11.4 2 19 18929 .994 287.5 180.2 +18.1 18 15899.0 -7.8 7 66 18944 .969 270.9 170.6 + 2 . 5 22 27190.5 -15.2 11 75 18931 .963 257.2 167.5 ~10.4 70 51886.9 +18.0 5 27 18933 .906 273.7 1 6 0 . 2 + 6 . 1 0 8

18952 .832 250.8 148.2 -12.0 4 1618937 .817 301.3 147.9 +29.1 77 334

(120.5) (+6.6) 18938 .455 216.9 1П.4 -15.0 5 36187.1 -18.1 75 415 18946 .208 295.3 106.0 +11.5 29 162188.6 -18.3 49 267 18947 .258 218.5 104.2 - 5. 2 7 43184.6 -17.5 26 148 18948 .372 201.6 103.1 -13.7 1 12

continued continued

2. A tiny spot.5. A stream, of which the leading components coalesce to form a

composite spot which alone survives on October 5.3. A pair of tiny spots.

- 8. A short stream.- 9. A short stream, of which the leader, a regular spot, is the sole

survivor from October 7.5. A few faint spots.

- 14. A cluster of variable spots, which assume stream formation byOctober 11.

- 1 0 . A stream, of which the follower alone remains after October 5.- 1 5 . A regular spot, with some following companions between October 6

and 10. It begins to break up and die out after October 13.-6. A small spot.

Page 63: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

19621 PHOTOHELIOGRAPHIC RESULTS 1958

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

С 247

U.T. Measuresand

Group Rad. Pos.№. Dist. Ang.

1958 о

Oct. 5.376 continued18953 .053 315.018939 . 282 175. 518949 .817 74.018950 .864 69.018951 .936 78.5

Oct. 6.370 (+26.3)18952 .936 254.318937 .911 298.818938 .614 235.318946 .436 283.318947 .448 244.018953 .279 277.714031 . 576 202. 418939 .362 216.518949 .666 70.218950 . 758 66. 518951 .837 78.3

Oct. 7.361 (+26.3)18937 .968 298.018938 .753 243.118947 . 649 253. 118946 .621 281.118953 . 476 276. 518939 .489 236.9140Sa .514 221.718949 .512 66. 518950 .609 61.518951 .698 77.4

Oct. 8.460 (+26.3)18938 .892 249.518947 .822 258.018946 .800 380.318953 .680 276.7140Sn .702 241.418949 .303 52.718950 .438 50.618951 . 502 74. 3

Oct. 9.504 (+26.4)18947 . 935 260. 8

Group 18953. Oct. 5Group 18954. Oct. 9Group 18955. Oct. 9Group 18956. Oct. 9Group 18957. Oct. 10Group 18958. Oct. 11

Group 18959. Oct. 11

Group 18960. Oct. 11

Group 18961. Oct. 11

Group 18962. Oct. 12

Posi

.Long.

о

97.293.740.135.225.0

(81.9)148.9147.3113.3107.4105.798.196.094.540.933.624.8

(68.8)145.3112.8107.3107.297.293.289.639.533.724.6

(54.3)114.0108.1107.797.393.839.833.024.7

(40.5)108.5

- 10.- 12.- 12.- 11.- 21.- 17.

- 23.

- 23.

- 23.

- 16.

tien Area UT Msasures Position Area

endт il*. Wele G10"0 Rad. Pos. T »«l«

Spots to. Dist. Arg. ****' *' 1UA- Spot!

o 1958 o o o

Oct. 9.504 continued+ 8.6 4 20 18953 .839 277.4 97.8 +9.6 20 134-9.7 4 28 18954 .489 222.4 60.4 -15.3 7 43+16.8 3 25 18949 .182 1.4 40.2 +16.6 31 164+21.3 36 209 18950 .289 26.3 32.6 +21.0 5 35+13.0 38 237 18951 .287 63.2 25.3 +13.4 53 309

18955 .724 87.4 354.0 +6.2 6 3018956 .914 71.2 334.0 +19.6 0 9

(+6.4)-12.2 6 28 Oct. 10. 300 (+26.4) (30.0) (+6. 2)+28.8 63 384 18953 .925 278.0 98.1 +9.7 10 57-15.0 14 98 18954 .599 234.7 60.3 ~14.8 9 55+11.5 11 85 18949 .260 319.5 40.1 +17.5 24 192-5.4 15 81 18950 .264 349.6 3 2 . 9 + 2 1 . 2 0 3+ 8.3 6 46 18951 .156 33.9 24.9 +13.6 41 250-25.9 1 12 18955 .585 88.1 354.1 +6.1 7 50-10.6 0 10 18956 .818 70.6 335.4 +19.3 2 16+17.8 1 18 18957 .990 106.0 310.4 -14.8 12 141+21.8 25 100+13. 2 49 309

Ort. 11. 389 (+26.4) (15.6) (+6.1)18954 .749 244.0 59.5 -14.7 7 . 40

(+6.4) 18949 .458 293.8 41.4 +16.1 19 152+28.6 92 423 18951 .225 304.8 26.5 +13.4 34 215-15.3 15 107 18955 .361 87.9 354.4 +6.4 2 17-5.9 20 94 18958 .654 114.1 338.4 -10.6 6 29+11.9 7 46 18956 .655 67.4 335.9 +19.3 1 5+ 8. 7 16 89 18957 . 934 1O8. 1 309. 3 -14. 5 69 363-9.6 2 10 18959 .977 120.0 303.2 -27.5 133 808-16.5 1 4 a .970 120.0 305.1 -27.1 99 529+17.3 22 107 18960 .965 66.0 299.8 +24.7 71 477+22.1 10 63 18961 .984 109.5 298.8 -17.9 49 393+13. 4 54 304

Oct. 12. 380 ( +26. 3) ( 2. 6) ( + 6. 1)(+6.3) 18954 .867 249.1 59.3 -14.7 4 18-15.1 15 68 18949 .610 288.3 39.5 +15.9 19 190-6.1 11 70 18951 .419 288.4 26.6 +13.2 24 154+12.0 2 16 18955 .173 93.7 352.7 +5.4 2 26+ 9.2 12 85 1405o .365 149.8 351.8 -12.3 2 11-14.8 1 5 18962 .338 36.2 350.2 +21.7 5 30+16.7 27 155 18958 .492 124.3 338.3 ~10. 5 5 38+22.0 9 51 18957 .836 112.1 309.6 -14.7 62 276+13.2 53 308 18959 .929 123.7 301.5 -28.2 161 1031

a .909 123.9 304.7 -27.3 98 563(+6.2) 18960 .892 65.4 299.7 +24.6 68 354-6.3 10 50 18961 .925 112.5 298.8 -18.1 43 298

continued 1405p .977 119.6 290.2 -27.1 5 25

A group of small, variable spots.A few small spots.A stream of small spots.A small spot.A variable cluster.A stream of small spots, of which only the leader remains onOctober 17.A stream, lead by a regular spot. The following components aredying out as the group crosses the disk; they are not seen onOctober 19, 22 and 23.At first a close pair of regular spots, of which the leader beginsto break up after October 13. The follower alone remains afterOctober 21.A regular spot, with some unstable companions which disappear byOctober 18.One or two small variable spots.

Page 64: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 248 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

UT.and

Group№.

1958

Oct. 13. 303189491895118962189581895718959

a189601896118963

Oct. 14. 363189491895118962189581895718959

a18961189601896318964

Oct. 15. 3741895118965189581896218966189571896118959

a18960189631896718964

Oct. 16. 3681896518968189581896218966

Group 18963Group 18964

Group 18965Group 18966Group 18967Group 18968Group 18969

Group 18970

Group 18971Group 18972

Measures

Rad. R».DLst. Arg.

о

( +26. 3). 763 284. 7.591 283.9. 274 0. 3.319 149.3.711 116.9.862 127.9.833 128.9.794 63.1.832 117.0.843 78.8

(+26.3).898 283.5. 769 282. 5. 335 334. 7.289 199.5.553 126.9.754 136.0.731 137.1.694 124.9.653 57.9.704 76.7.988 94.3

(+26.3).895 28 L 7. 593 238. 5.420 229.8.459 320.4.235 184.0.408 145.6.559 136.9.659 146.9.639 149.1. 507 48. 2.518 73.9. 570 104. 1.925 95.7

(+26.2).748 247.4.734 $12.0.592 243.8. 583 308. 4.370 229.4

. Oct. 13

. Oct. 14

Fbsiticn Area U<T< Measures fbsition Area

Lme Let Uifa. *ю1е Ол**> Rad< ***• Lnrw Tut Ibh *°leLeng. Let. U*. .^ № ал ^ Long. Lat. Uib. «^

о о 1958 o o o

(350.4) (+6.0) Oct. 16. 368 continued40.0 +15.1 20 185 18957 .342 178.8 309.6 -14.1 2526.3 +13.0 21 126 МОба .346 155.0 301.4 -12.5 1

350.3 +21.8 5 27 18961 .452 158.0 299.7 -19.0 28340.9 -10.0 6 70 18959 .587 162.4 298.4 -28.2 99309.7 -14.2 44 207 a .576 166.2 301.1 -28.1 82300.1 -28.2 165 1104 18960 .392 30.1 297.5 +25.4 46303.6 -27.5 120 567 18963 .318 64.0 293.0 +13.5 4299.3 +24.8 81 386 18967 .394 111.7 288.6 - 2.9 1299.2 -18.5 42 324 18969 .497 57.4 283.5 +20.7 28292.7 +12.7 4 14 18964 .816 98.2 256.2 - 3. 2 206

18970 .975 100.2 234.2 -8.6 20(336.4) (+5.9)

40.7 +14.7 2 23 Oct. 17. 378 (+26.2) (296.6) (+5.7)26.7 +13.4 11 64 18965 .891 251.8 356.8 -13.4 73

345.3 +23.4 1 7 18968 .849 306.6 351.4 +33.7 10342.0 -9.9 23 77 1406b .755 295.4 344.1 +22.7 7309.4 -14.1 34 188 18958 .760 251.9 343.6 "9.7 3300.1 -28.0 150 906 1406c .637 285.4 335.7 +14.2 1302.4 -27.5 101 529 18966 .537 244.6 325.8 -8.3 25299.6 -18.7 49 246 18957 .408 210.8 309.0 -14.8 26299.0 +25.0 68 365 1406d .298 321.2 307.9 +19.0 0291.8 +13.5 14 42 18961 .421 186.0 299.3 "19.0 17255.9 -3.3 76 539 18959 .565 182.6 298.3 -28.6 99

a .568 185.6 300.2 -28.6 8418960 .341 359.2 296.9 +25.5 30

(323. 1) (+ 5.8) 18963 .151 25.9 292.7 +13.5 026.9 +13.0 4 20 18967 .193 147.0 290.6 - 3.6 9

354.2 -13.0 0 10 18969 .336 42.4 282.7 +19.9 81342.0 -10.2 11 75 18964 .654 102.2 256.9 ~ 3.6 207342.0 +26.1 2 16 18970 .927 102.4 230.3 ~9.2 134324.0 -7.7 7 29309.4 -14.0 30 225299.4 -18.7 41 189 Oct. 18. 402 (+26.1) (283. 1) (+ 5.6)299.1 -28.1 113 739 18965 .966 254.3 356.0 -13.5 27301.4 -27.8 71 445 18966 .709 252.3 326.0 ~8.3 25298.6 +25.0 47 306 18957 .543 230.7 308.8 -15.0 44292.5 +13.2 5 16 18971 .613 213.1 304.8 -25.6 11289.6 -3.2 14 51 18959 .618 203.4 299.3 ~29.0 100256.2 -3.0 92 1093 a .620 204.1 299.9 ~28.9 99

18961 .491 212.1 299.1 -19.1 1918960 .400 329.3 296.1 +25.5 31

(310.0) (+ 5.8) 18967 .196 218.5 290.1 - 3. 2 2354.9 -12.6 55 208 18963 .185 323.7 289.6 +14.1 0350.9 +33.8 8 18 18969 .248 359.8 283.2 +19.9 57342.5 -10.2 9 43 1406e .093 41.6 279.5 +9.6 0340. 5 +26. 2 5 13 18964 . 467 109. 7 257. 1 - 4. 0 142326.4 -8.3 25 108 18970 .814 105.7 230. 7 -9.3 150

continued 18972 .977 98.5 206.5 -7.1 16

- 21. Intermittent. A few small spots.- 26. A large composite structure which slowly disintegrates as it

2165

170583413280

149

1241308

93

3795037186

163246

4150549455226

564

5261366791

370272357

39389366104169

1510

7844

1198880

101

crosses the disk, leaving a regular spot as the sole survivor on

. Oct. 15

. Oct. 15

. Oct. 15

. Oct. 16

. Oct. 16

. Oct. 16

. Oct. 18

. Oct. 18

October 25.- 18. A pair of rapidly growing spots.- 2 1 . A small stream, of which the follower alone remains by October- 23. Intermittent. A group of small variable spots.- 17. One or two small spots.

20.

- 2 4 . A compact stream, the leader of which becomes regular in outline byOctober 22, while the follower breaks up.

- 2 8 . A stream, of which the follower is a large regular spot. Theof the group slowly breaks up as it crosses the disk.

- 2 1 . A few small spots.- 29. A small regular spot, with distant following companions on

October 23 and 24.

rest

Page 65: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 249

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.aid

Огоцрto.

1958

Oct. 19. 30418966189571897118959

a18961189601896718969 .1896418970189731897218974

QCt. 20. 6021896618957189711896118959

a189601896918964189701897318972189741897518976

OCt.21.4821896618957189711896118959

a1896018963189691897718964

Msasures

Rad.Dist.

.825

.675

.729

.703

.703

.596

.508

.387

.315

.297

.679

.695

.920

.985

.970

.847

.856

.763

.806

.823

.700

.533

. 170

.463

.508

.762

.897

.960

.987

.992

.934

.931

.864

.894

.906

.802

.769

.683

.624

.300

Pos.Ang.

0

(+26.1)255.0239.8225.8216.1216.1227.0312.5246.1321.6123.9109.3114.3100.173.1

(+26.0)258.2248.4234.7239.5226.2227.2300.6300.0196.6121.7

129.4104.272.2

112.298.4

(+25.9)259.9250.9239.7244.6231.7232.5297.3283.3294.4248.1238.6

Position

Laig.

0

(271.2)324.8308.3306.6299.6299.6298.5295.5291.9283.1257.0231.0230.9205.6190.1

( 254. 1)328.5308.5305.1297.9296.1298.2295.6283.4256.9230. 7

230.4206.2190.3183.7174.5

(242.5)324.0308.7305.4297.8296.8299.0294. 1292.7283.9278.3257.3

Let.

о

( + 5.5)-9.1-15.4-26.0-29.7-29.7-19.0+25.0- 3.8+19.6- 4.1- 8.7-12.4-7.0+17.6

(+5.4)-10.0-15.1-26.2-18.8-29.9-30.1+24.9+20.1- 3.9- 9.1-13.8-7.2+18.3-19.5-7.3

(+ 5.3)-9.3-15.7-25.7-18.7-30.5-30.6+24.8+13.6+20.4-9.1- 3.8

Area

Ibb.

47468

59591526

2112134127

16160

14149

15717015

110128152

241412230

065

18514915

2119

14109

WioleSpots

24328144

37937989

17718

74112531026

968725

129126

2392

38737383

760967

11371547057

17412

34372792

23722568

5673

28872

continued

U.T.aid

Отарto.

1958

Oct. 2 1.48 21406 f1897018973189781897218974189751406618976

Oct. 22. 30 218959

a189611896718960189691897718964189701897318978189721897418975

OCt.23.49718959

a18961189601896718969189771896418970189731897818979189721897418975189801898118982

Nfeesures

Red.DLst.

Irxi*Arg.

о

Position

long.

0

Let.

о

Area

Uib. flholeSpots

continued.218.331.398.358.621.802.896.932.944

.957

.957

.935

.901

.890

.798

.755

.466

.256

.342

.249

.470

.679

.811

.997

.997

.993

.974

.972

.924

.921

.680

.360

.404

.203

.117

.283

.472

.661

.890

.977

.967

280.1139.4147. 168.5

108.971.1

115.389.399.9

(+25.9)235.8235.8247.7262.8295.1291.3252.8250.7172.4173.448.3

115.768.1

118.9

(+25.8)239.1239Л250.6294.1264.2289.5257.2258.6223.8212.4326.4214.9139.660.4

128.2130.5107.361.2

254.9229.9229.7222.6206.3189.7183.3173.9173.0

(231.7).298.2298.2297.4295.1293.9283.9278.5257.7229.7229.4220.7206.6190.2183.0

(215.9)297.5297.5296.6293.7291.6283.5281.3257.6230.5228.8222.5219.7205.3190.4182.5163.0140.5140.3

+ 7.4-9.3-14.2+12.5-7.3+18.2-19.8+ 2.6-7.5

(+ 5.3)-30.5-30.5-18.7- 4.1+24.6+20.1-9.3- 4.1-9.4-14.5+14.7-6.9+18.6-19.6

(+5.2)-30.2-30.2-18.5+24.6-4.4+19.9-9.6- 3.8-10.0-14.8+14.9-о.з- 7.2+18.1-19.8-32.1-15.6+29.1

117826

1206

3556

545429

514991386

17026

1177

33

00840

545

100217

2248

166

34123017

81145146

48276

1881210

204204120

1780

60688

7301036

152127546

187

2424454319

42234

722108815037258653

16455

177116

Group 18973. Oct. 19 - 28.

GroupGroupGroupGroupGroupGroupGroup

Group

Group

18974.18975.18976.18977.18978.18979.18980.

18981.

18982.

Oct.Oct.Oct.Oct.Oct.Oct.Oct.

Oct.

Oct.

19202021212323

- 26.- 31.- 21.- 23.- 27.- 25.- 26.

23 -Nov. 1.

23 - 29.

AAAAAAAttA8̂Or

A regular spot, immediately south of Group 18970, which begins tobreak up after October 23.

group of small variable spots.slowly-diminishing regular spot.tiny spot.

A pair of small spots.A cluster of variable spots.A pair of equatorial spots.A pair of spots, in high southern latitude, until October 26, whenthere are a few tiny spots.A regular spot, soon breaking up and forming a small variablegroup.One or two small spots.

Page 66: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 250 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

CropNb.

1958

OC t. 24. 362189691406h18964189701897318978189791897218974189831897518980189811898218984

Ott.25.3471896418973189701897818979189721897418983189751406Î1898518980189811898218984

Oct. 26. 31218964189731897018978189721897418983189751898518980

Group 18983Group 18984Group 18985Group 18986Group 18987

Group 18988Group 18989Group 18990Group 18991Group 18992Group 18993Group 18994

Group 18995

Group 18996

Measures

Rad. Pos.DLst. Ang.

о

(+25.7).985 289.2.934 295.1.819 261.3.494 239.1. 524 232. 1. 349 298. 6.309 251.3.215 183.9.311 47.6.351 84.1. 547 139. 1.822 135.7.919 109.6.914 59.4.987 105.3

(+25.6).928 263.0. 686 242. 1.652 248.9.532 290.2. 502 260. 0. 326 232. 5.219 9.9. 130 76. 3. 447 158. 7. 388 35. 2.408 117.1.746 144.5.815 113.3. 823 56. 4.945 107.3

(+25.4). 988 264. 5.827 249.0.798 253.6.704 285.6.501 247.8. 280 320. 2.078 295.0.421 185.0.240 143.8.624 159.0

. Oct. 24

Раз

Long.

о

(204.5)285.5273.4258.5229.9229.6222.9221.4205.3190.7184.0182.2161.9140.7139.5125.7

(191.5)258.8230.2229.4222.5221.0206.5189.2184.2181.6177.5170.2160.5140.7139.3122.9

( 178. 8)259.2231.4229.6223.0206.5189.6182.9181.1170.6163.8

- 27.

. Oct. 24 -Nov. 5.

. Oct. 25 - 26.

. Oct. 27 -Nov. 6.

. Oct. 27 -Nov. 7.

. Oct. 28 - 31.

. Oct. 28 -Nov. 1.

. Oct. 28

. Oct. 28

. Oct. 28

- 30.- 29.- 31.

. Oct. 28 -Nov. 1.

. Oct. 28 -Nov. 9.

ition Area

Let. Uib. *°ie

spots

0

(+5.1)+19.8 15 171+25. 2 0 15- 4. 1 81 439-10. 1 123 903-14. 1 29 140+14.4 6 54- 0. 7 12 21-7.2 11 61+17. 0 2 13+ 6. 8 10 27-19.6 24 138-32. 2 7 25-15.7 25 173+29.9 22 98-14. 1 0 55

(+5.0)-4.5 51 332-14.8 17 111- 9.6 151 930+14.8 17 117- 0.6 4 16- 6.6 11 40+17. 4 7 48+ 6.7 16 64-19.6 29 165+23. 2 2 21- 6. 0 6 58-33.0 4 25-15.6 28 162+30. 1 13 64-14.5 11 83

(+ 4.9)- 4.6 47 261-14. 3 37 95-9.9 131 704+14.4 14 53- 6. 5 7 34+17. 2 4 59+ 6. 8 20 90-19.8 16 118- 6. 3 4 30-30. 7 5 1 5

continued

U.T.and

GroupNo.

1958

MM

Rod.DLst.

isures

Pos.Arg.

о

fbsi

Long,

о

Ltim

Let.

0

Area

tu. Wiole"*' Spots

Oct. 26. 312 continued189811898218984

Oct. 27. 3241897318970189781897218983189751898118982189841898618987

Oct. 28. 456189731897018972189881897518989189901898118982189841898618987189911899218993189941899518996

Oct. 29. 3591897218988189751898918981

.683

.715

.855

.925

.916

.840.680.302.478.527.582.730.898.972

.989

.977

.843

.639

.616

.477

.350

.397

.477

.560

.811

.882

.945

.914

.973

.974

.988

.990

.934

.789

.736

.644

.363

119.651.2

110.4

(+25.3)253.7257.2285.3255.1278.1211.2130.742.0

113.551.2

102.9

(+25.2)254.6258.8259.4275.8229. 1250.0173.6154.025.4

123.046.6

105.4130.875.247.282.6

104.897.8

(+25.0)261.6275.9237.9257.0183.9

140.8138.8123.1

( 165. 5)231.0230.3222.5206.7182.9180.7141.1138.9122.2105.090.7

( 150. 5)230.3226.8206.7190.2180.0177.1148.2140.1136.9121.7103.190.688.584.374.973.371.369.6

(138.6)206.7190.7179.8177.5140. 1

-15.8+30.3-14.5

(+4.8)-13.1-9.7+15.4-6.4+ 7.0-19.4-15.7+29.8-13.4+36.6-11.3

(+4.7)-14.5-9.8-6.3+ 7.3-19.6- 5.2-15.5-16.2+30.0-13.6+37.0-11.2-36.0+15.4+42.6+ 8.3-13.8- 7.0

(+ 4.6)-6.1+ 7.5-19.5-4.7-16.5

247

16

20142

29

1126144

670

36

76112351592

144

1085

2765

32152

00

6517

439

1062180

135848

1258

1391586728

3907

259

66531

322015863116818

71540

1582324

141779

2214

28356

2419533

continued

A short-lived stream.A small spot, which develops intoTwo faint spots.A short stream of variable spotsA regular spot.from October 31A cluster.A short stream.A tiny spot, notA small spot.One or two tinyA small regular

Other

a long broken stream.

in high northern latitude.spots appear in the rear to form a stream

to November 4 .

seen

spots.spot,

A stream, of which the

on October 29.

in high northern latitude.only stable component

spot. This is breaking up as it. Oct. 28 -Nov. 9.

. Oct.28-Nov.4.

A small spot on October 29 and 30bi-polar group.A few variable spots, not seen on

approachesis a central regular

the west limb., developing rapidly into a large

October 30.

Page 67: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1 9 5 8 С 251

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

Measures

Group Rad. Pos.No. Dist. Aig.

1958 о

H>s:

Long.

о

Ltion Area

Lat. Uib. *°ie

Spots

0

Odt. 29. 359 continued189821899718984189861898718991189921899318994189961899518998

Oct.30. 303189881897518989189901898118997189841898618987189921899318994189951899818999

Oct. 31. 36418988189751898918981189841406}18986189871899218994189951899319000189961899818999

Group 18997Group 18998Group 18999Group 19000Group 19001Group 19002Group 19003Group 19004

Group 19005Group 19006

. 436 6. 8

.434 159.3

.419 136.8

.729 39.8

.772 108.6

.883 135.0

.816 74.7

.929 45.6

.916 83.0

.927 98.1

.937 107.3

.982 107.3

(+24.9).907 276.6.848 242.9.795 260.1.484 231.2.434 214.9.414 188.1. 327 164. 7.661 31.9.633 113.8.684 73.1. 874 42. 8.812 83.7.844 111.1.931 108.9.951 74.6

(+24.7). 978 276. 4. 944 247. 2.911 263.5. 567 236. 5. 350 208. 0.424 176.0. 574 16. 7.485 121.8. 498 68. 2. 633 84. 2.704 117.7. 793 37. 1.711 66.2.725 104.3.818 113.1.861 74.6

. Oct. 29

135.2129.3121.5102.690.688.684.274.472.171.671.461.6

( 126. 2)191.4179.4177.8148.9141.1129.7121.199.990.283.872.771.971.860.353.9

(112.2)190.3179.6177.1141.3121.9110.4100.187.583.873.072.071.970.067.360.953.0

- 30.. Oct.29-Nov.6.. Oct. 30 -Nov. 5.. Oct. 31 -Nov. 1.. Nov. 1. Nov. 1. Nov. 2. Nov. 2

. Nov. 3

. Nov. 3

- 3.- 2.- 4.- 9.

- 5.- 10.

+30. 1 1 12-19. 3 5 20-13.3 93 682+37.7 4 30-11.2 24 180-35.6 4 12+15. 1 6 17+42.6 32 121+ 8.2 122 854- 5.7 0 9-14.4 6 16-16.0 5 23

(+4.5)+ 7.9 43 375-20.0 4 22- 5.0 16 173-13.4 1 9-16. 4 2 7-19.6 1 8-13.8 66 530+38. 1 16 93-11.1 26 139+14.8 3 9+42. 5 9 106+ 7.8 86 822

-15. 1 6 30-15.7 5 43+16.0 9 76

(+4.4)+ 7. 2 43 287-19.8 3 10- 4. 1 15 86-14.4 5 24-13. 6 68 575-20. 5 1 5+38. 2 18 86-10.8 41 229+14. 5 1 4+ 7. 1 75 664-15.7 51 352+42. 5 15 52+19.4 14 58-7.2 0 5-16.0 9 46+15.4 37 155

A pair of tiny spOne or two smallA group of small 'One or two smallA few small spotsOne or two tiny s]One or two smallA stream, developregular in outlinA cluster on Nove:A small regular s

U.T.end

GroupNa.

1958

Nov. 1.3831898918981189841900118986190021898718995189941899618993190001899818999

Nov. 2.315189841900319001189861900218987190041899418995

ab

189961899818999

Nov. 3.5211898419003190011898618987190041899418995

18996189991900519006

мев

Rad.Dlst.

.980

.712

.497

.183

.540

.186

.336

.536

.432

.508

.725

.564

.683

.756

.663

.529

.372

.568

.129

.249

.573

.237

.414.399.442.371.534.616

.847

.761

.603

.664

.373

.582

.082

.358

.381

.346

.188

.415

.693

.979

sures

Pos.Arg.

o

( +24. 6)264.8243.7232.6311.6359.4

51.6137.0129.482.5

110.431.159.6

118.873.4

(+24.4)244.4284.1289.5342.8338.2176.4

13.876.2

147.0

152.2140.8121.5128.669.6

(+24.2)251.8282.4282.6326.2226.6350.6311.4185.5195.2175.0184.359.279.156.4

ttJSJ

Lang.

o

(98.8)176.5140.0122.7106.899.290.385.473.473.370.368.767.760.550.3

(86.5)124.3117.9107.398.689.385.676.673.173.0

75.469.768.060.949.8

(70.6)126.1119.9107.298.186.677.674.172.676.668.871.448.927.0

352.3

L tien

Let.

о

(+4.3)- 3.6-15.1-13.6+11.2+36.8+10.9-10.0-16.0+ 7.1-6.4+42.0+20.2-15.8+15.3

(+4.2)-13.3+11.0+11.0+36.8+11.1-10. 1+37.8+ 7.3-16. i-16.4-15.9- 7.1-15.6+15.7

(+4.1)-13.0+12.1+10.8+37.0-11.0+39.0+ 7.2-16.7-17.4-16.0-6.7+16.0+10.5+33.7

Al

Uib.

51

578

296

4994

1161315

32

54178

401

511

90219

1298764

15

5253

15397

662241259948

1726

rea

VholeSpots

8113

41329

19921

329606798

19301122

174

4448150

2916

2447

602989547422

3331

127

2992513

12117262

4181004525479

152562

142

The leader becomes

a single spot on November 4 'and 5.

Page 68: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 252 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T. œasuresand

Group Rad. Pos.No. Dist. Arg.

1958 о

Nov. 4.29218984190031898618987190041899418995

ab

1899618998189991900519006

Nav. 5.293189841898618987190041899418995

18999190051406k19006

Nov. 6.3001898618987190041899418995

ab

1899819006

Nov. 7.43618987190041599418995

ab

Group 19007.Group 19008.Group 19009.

(+24.1).915 252.9.871 282.4.739 319.6.486 237.8.623 336.1.245 282.7.390 207.9.446 215.8.364 201.5. 269 220. 2. 320 174. 7. 308 49. 2.505 76.4.944 55.4

(+23.9).976 254.7.829 313.0.703 248.9. 700 325. 7.455 280.3.514 229.2.590 232.7.477 226.3.191 347.7.279 68.9.835 67.7.878 52.9

(+23.7).928 307.3. 838 253. 7.804 316.1.649 277.7.668 239.7.732 241.7.632 237.9.529 233.4.780 47.7

(+23.4).949 256.8.902 311.2

.813 278.2

.832 246.4

. 873 247. 2

.793 245.6

Nov. 7 -Nov. 7 -Nov. 7 -

res

Long.

о

(60.4)124.5120.997.385.179.174.371.376.268.370.458.746.530.6

351.3

(47.2)123.096.489.177.474.071.076.668.149.632.0

351.7349.7

ition

Lat.

о

(+4.0)-13.9+12.8+37.4-11.3+38.4+ 6.9-16.1-17.3-15.7-7.9-14.5+15.4+10.3+33.8

(+ 3.9)-14.0+36.9-11.7+38.6+ 8.2-16.0-17.5-15.5+14.6+ 9.5+20.7+34.1

Area

Uib. *°1е

Spots

U.T.and

GroupNo.

1958

MBB

Rad.Bist.

isures

Pos.Ang.

0

KSI

Long.

о

tien

Let.

о

Ai•ea

«holeSpots

Nov. 7.436 continued61 565

4 3017 12334 18313 8558 373

270 1464121 617149 847

0 31 97 348 38

22 219

32 1749 56

15 11338 28726 200

247 1538116 634131 904

7 472 102 14

16 176

(33.9) (+ 3.8)99.288.878.874.270.876.267.759.9

349.8

+35.8-11.4+38.0+ 7.9-16.6-17.5-16.4-14.9+34.3

8 5319 П963 45520 176

189 1324112 61977 705

6 2220 154

(18.9) (+3.7)89.178.673.271.776.467.6

8.9.

11.

-11.2+38.3+ 8.8-17.2-17.8-16.6

One or

20 96135 65711 65

163 95590 48272 460

continued

two tiny spots

190071900819009190 1019006

Nov. 8.4791900418995

ab

1899419007190081901019006140611406m1901119012

Nov. 9.3851899418995

ab

19004190081900919006190121901119013

Nov. 10. 37519009190061901419012190111901319015

Nov. 11. 530190091407 a

.583

.435

.196

.240

.661

.960

.936

.958

.909

.917

.754

.616

.302

.573

.801

.902.975.964

.983

.983

.994

.971

.975

.758

.589

.524

.881

.922.981

.773

.525

.699

.766

.839

.919

.968

.939

.217

306.0297.0311.7165.638.7

(+23.2)309.6249.8250.0249.4278.8297.7290.2221.425.8

107.5101.6122.269.4

(+23.0)278.9251.1251.0251.4309.3287.7283.6

8.768.5

124.865.6

( +22. 8)281.3350.3121.866.2

129.664.193.7

(+22.5)279.9332.4

49.642.427.415.4

349.0

(5.2)76.972.076.267.871.751.541.816.8

347.7314.1302.0292.6290.6

( 353. 3)72.970.775.367.469.441.728.8

347.8292.5292.5274.3

(340.2)30.5

346.3301.5292.1292.1274.5265.2

(325.0)34.9

330.9

+23.2+14.7+11.1-9.7+34.2

(+3.6)+38.9-17.5-18.0-17.0+ 9.5+23.0+15.2.-9.5+34.4-11.7-8.9-зо.з+20.8

(+ 3.5)+ 9.4-17.8-18.4-17.1+39.0+15.6+10.8+34.5+20.5-30.0+24.6

(+ 3.4)+10.9+34.4-18.8+20.2-зо.о+25.1- 2.7

(+3.2)+10.4+14.2

22101

13

75130676316

280

1262

1512

58431532012427

140

2415

14163

18

252

868

25

88

661956554396136

1073

252118

10664

29641258369155742227299028

1571423549216

147

28011

continued

A cluster of small spots.A single spot on November 7 ; notgrowing spots from November 9 to

Group 19010.Group 19011.Group 19012.Group 19013.Group 19014.Group 19015.

Nov. 7 -Nov. 8 -Nov. 8 -Nov. 9 -Nov. 10 -Nov. 10 -

8.16.13.12.12.16.

A tinyA smallA smallA smallA smallA small

spot.regular spot.spot.spot.spot.regular spot, breaking up

seen11.

on November 8 ;

on November 15.

a pair of

Page 69: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHic RESULTS 1958 С 253

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

Utx_ Msasures

âxlGroup Rad. Fbs.N3. DLst. Ang.

1958 о

Ibsj

Long.

0

L tien Area

о

Nov. 11. 530 continued1901419012190111901319015

N3V. 12. 5321407b1407 с1901619014190121901119013190151901719018

N3V.13.437190161407d190191407 в1901219011190151901719018

N3V.14.5421407119020190191901119015190171901819021

N3V.15.40519020190191407g19011

Group 19016Group 19017Group 19018Group 19019Group 19020Group 19021Group 19022

Group 19023Group 19024Group 19025Group 19026Group 19027Group 19028

.527 136.2. 585 59. 4.724 137.8. 799 60. 7.867 95.3

(+22.2).930 258.0.626 247.8.520 289.8.410 157.9.425 46.4.628 149.6.669 55.2.731 97.4.941' 101.0.954 105.8

(+22.0).682 285.4.639 260.0. 220 193. 4. 384 165. 8. 320 22. 0. 559 164. 4.569 99.7. 842 102. 4.863 108.2

(+21.7).859 301.9.790 275.5.366 235.7.543 186.7.345 107.7.683 107.1.715 113.2.744 102.9

(+21.5).914 274.7. 547 249. 3. 476 329. 5. 586 203. 1

. Nov. 12

. Nov. 12

. Nov. 12

. Nov. 13

. Nov. 14

. Nov. 14

. Nov. 15

. Nov. 15

. Nov. 16

. Nov. 16

. Nov. 18

. Nov. 18

. Nov. 18

302.4292.8291.1275.0265.4

(311.8)19.0

347.9341.8302.4292.8290.4274.7265.4242.7240.9

(299.8)342.0338.8302.7294.1292.5289.9265.8243.7242.3

(285.3)341.2337.4303.1289.5266.1244.0242.8238.5

(273.9)339.9304.9289.5289.2

- 13.- 16.- 14.- 18.- 15.- 15.- 21.

- 26.- 19.- 20.- 19.- 19.- 28.

-19. 3 2 18+19.9 6 31-29. 7 16 93+25.0 2 9- 3.0 24 127

(+ 3.1)-10.0 0 18-11. 1 1 8+12.8 10 83-19. 2 1 6+19. 9 2 18-29.8 13 65+24. 8 0 3- 3. 3 24 94- 9. 2 3 43-14.1 11 82

(+3.0)+12.6 11 45-4.1 3 U-9.3 1 4-18.8 1 5+20. 2 1 5-29. 5 9 72-3.0 12 79-8.7 7 26-14.0 13 43

(+2.9)+28.6 0 9+ 6. 1 6 28- 9. 1 7 42-29. 5 9 50- 3.0 10 63- 9. 4 1 14-14.2 0 11- 7. 5 3 38

(+2.8)+ 5. 5 9 " 22- 8. 7 5 33+26. 8 1 13-29.7 6 31

continued

U.T. Measuresand

Group Rad. Fbs.No. Dist. Arg.

1958 о

Positkn

long. Let.

0 0

An

Urfx

sa

tholeSpots

Nov. 15. 405 continued190151407h19017190211902219023

N3V.16.4111407Í190191901119024190151901719025190221407 j1407k19023

Nov. 17. 42819019190241902519022

19023

Nov. 18. 589190191902414071190251407m19022190261401 n190231902719028

Nov. 19. 3881407o19024

.153

.365

.535

.579

.637

.971

.891

.734

.673

.319

.165

.356

.329

.495

.556

.567

.892

.890

.492

.159.371

.761

.983

.690.644.200.259.323.242.532.558.771.983

.852

.822

129.949.2

113.1104.660.984.7

(+21.2)254.0255.4217.4314.7234.6126.3112.951.1

121.4110.784.7

(+20.9)257.9296.6137.7

30.4

84.1

(+20.6)260.1289.7266.2232.7210.7351.0152.166.182.670.7

102.9

( +20. 3)265.2288.1

267.2252.7244.1239.8237.7197.9

(260.6)321.8306.3288.6274.2268.3243.8243.0236.4231.4228.2197.6

(247.2)308.9274.2241.1235.6197.8

(231.9)310.5274.0271.7241.0239.6235.0225.3201.9198.2182.8153.5

(221.4)279.4275.6

- 2.8+16.4-9.7-6.0+20.2+ 5.8

(+ 2.7)-12.9- 8.7-29.8+15.5- 2.8- 9.6- 4.7+20.5-14.4-9.2+ 5.9

(+2 .5)-9.6+14.9-4.2+21.0

+ 6.1

(+2.4)-9.3+15.2-0.6- 4.6-10.5+20.9- 9.9+14.4+ 6.1+16.3-12.2

(+2 .3)- 2.9+16.1

122213

31

824

31711

2310

16

9-62

2432

09372

2100

260

64

02

641059

10125

2387165

334

3575

52

128

234415

102

142

1161105814

10974

1102

474

413

continued

A stream of small spots.One or two tiny spotsA small spot.A few small spots.A pair of tiny spots.A few tiny spots.

.

A stream of small spots, of whichNovember 2 1 .A regular spot, withA small stream.

only the followers remain on

an occasional companion.

A cluster of faint spots.A few faint spots.A tiny spot.A variable stream, ofNovember 23 when the

which the leader is a regular spotgroup begins to break

untilup and die out.

Page 70: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 254 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

UT.ad

ОкярNa.

Nfeasures

Rad. Pos.Dist. AT&

Position Area

Long. Lat. Шэ. flholeSpots

V.T.ad

QrtxpNa.

Msasures

Rad. Pos.Dist. Ang.

Position

Long. Lat.

Area

Uib. fltoleSpots

1958 0 0 о

N3V.19. 388 continued1902519022190261407p1902319029190271902819030

Nov. 20. 42419025190221407 q1407 г190231401m19029190311902819030190321903319034

№v. 2 1.4011902219023190291903119028190301903319034

Nov. 22. 3821902319029190311902819030

. 375 249. 8

.386 326.2

.249 185.7

. 436 49. 1

.394 79.9. 591 100. 1.638 67.8.936 104.0.966 72.9

(••20.0).598 255.7.518 .310.6.252 186.0.340 10.8.170 66.0.384 125.0.371 108.4.681 102.8. 831 106. 1.890 71.8.930 105.8. 968 82. 4.992 115.8

(+19.7).645 303.5.105 313.9.191 124.6.525 108.7.699 109.7.772 69.2.886 81.8.953 117.4

(+19.4). 307 284. 6.135 215.0.346 124.8.529 115.6.623 64.1

242.0234.6222.8201.1198.5185.9183.7153.3146.6

(207.7)243.2232.6209.2203.8198.8189.1187.1165.9153.2145.7140.8132.3127.1

(194.8)230.2199.1185.8164.8152.7145.9132.7125.6

(181.9)199.2186.3165.2152.9146.1

- 5.3+20.9-IL 9+18.7+ 6.1- 4.1+15.7-12.2+17.1

(+2.2)-6.7+21.7-12.2+21.6+ 6.1-10.6-4.6-7.0-12.1+17.2-13.8+ 7.9-25.2

(+2.1)+22.5+ 6.2- 4.1-7.9-12.0+17.2+ 8.2-25.3

(+ 1.9)+ 6.3- 4.4-9.5-11.5+17.3

42500

2511

9246

1U07

16126

703800

15

618222161440

24

1844595447

4290

42

12546

471220

870

439

1227

1533

460190

51892

20121117124352192

1088

102279345355205

1958 о о 0

N3V.22.382 continued190321903419035

Nav.23. 2791902319029190311902819030190321903419035

Nov. 24. 31019023190291903119028190301903219036190341903519037190381903919040

Naiv. 25. 29419023190291903119028190301903219036190341903519041

•19037

.697 113.2

.879 120.5

.986 106.3

(+19.1). 497 279. 4.311 249.3. 224 158. 3. 376 128. 5.477 55.7. 562 119. 1. 790 124. 7.915 107.9

(+18.7).686 277.9. 504 257. 8.256 214.3.245 161.6.322 32.9. 385 135. 5.510 51.7.667 133.0.793 110.9. 924 53. 2.918 78.1.959 107.4.986 107.0

(+18.4). 840 276. 8.691 261.6.422 240.0.279 212.6.276 351.9.274 172.6.387 34.6. 552 145. 7.664 115.4.797 71.4. 853 49. 7

140.6125.1102.8

( 170. 1)199.5186.6165.3152,7145.8139.8124.3105.7

( 156. 5)199.5186.0164.9152.0146.0140.4131.4123.9106.593.190.284.577.3

(143.5)200.4186.6165.2152.3145.8141.4130.0123.4105.292.091.6

-14.5-25.4-15.7

(+ 1.8)+ 6.2-4.5-10.1-11.8+17.2-14.2-25.4-15.5

(•+ 1.7)+ 6.7- 4.6-10.4-11.7+17.3-14.2+19.9-25.5-15.3+34.3+11.6-16.1-16.4

(+ 1.6)+ 6.5- 4.6-10.7-11.9+17.4-14.1+20.1-25.5-15.2+15.7+34.4

1260

1719674136

21131

1718

1153523

210134785

1060

147

1051425

21611580

57

12125

23

121193445274200

31105305

125130645179180185791

3006629

103428

7253

805125101

179393

3288

347continuée* continued

Group 19029.Group 19030.

Group 19031.Group 19032.Group 19033.Group 19034.Group 19035.Group 19036.

Group 19037.Group 19038.Group 19039.Group 19040.

Nov. 1 9 - 2 5 .Nov. 19 - 29.

Nov. 20 - 29.Nov. 20 - 25.Nov. 2 0 - 2 1 .Nov.20-Dec.2.Nov.22-Dec.3.Nov.24-Dec.2.

Nov. 2 4 - 3 0 .Nov. 2 4 - 2 9 .Nov.24-Dec.3.Nov.24-Dec.7.

Group 19041. Nov.25-Dec.3-

A stream of small spots.A regular spot, which becomes elongated and splits into two spotsby November 25.A cluster of spots, developing into a compact stream.A few small spots, not seen on November 21.A small spot.A regular spot.A long stream, of which only the leader remains by November 30.A cluster of spots, developing into a bi-polar group. The followeris breaking up as it passes from view.A pair of spots, of which only the leader remains by November 29.A pair of spots, of which only the leader remains by November 28.A cluster of variable spots.A large compact stream, of which the follower becomes regular inoutline by November 4.A few small spots on November 25 and 26, developing into a longbroken stream.

Page 71: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 255

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.ad

(ЬярND.

1958

(tenures

Rad Pos.Hat. Ang.

Position

Lang. Lat.

Area

№v.25. 294 continued1903819039190421904019043

Nov. 26.32В1902319031190281903019036

19034190441903519037190411903819039190421904019043

Nw.27.41719031190281903019036

1903419044190351903719041190381903919042190401904319045

Nov. 28. 5 IB190311902819030

.817

.886

.911

.936

.985

76.6108.784.9

108.249.6

89.483.078.075.965.4

+11.8-15.7+ 5.3-16.4+40.0

(+18.0)948603431382323327335466470490760

,662653754

,787,839,941

276.9249.8234.4316.8357.4349.6

6.0166.5

14.3125.043.066.873.6

112.685.6

110.646.8

(129.9)201.1164.9150.9145.7130.8133.5127.8123.0122.3105.590.990.790.383.878.275.265.3

(+ 1.5)+ 7.0-10.7-13.1+17.5+20.2+20.2+20.9-25.3+28.4-14.9+34.8+16.3+11.8-15.8+ 4.4-16.3+40.7

(+17.6)777 255.0621 245.2

299.1324.5317.2331.2193.9347.9152.031.357.267.0

120.085.2

115.443.372.6

.542

.405

.436

.383

.466

.473

.318

.644

.468

.443.577.605.696.876.911

( 115.6)165.2151.0145.1130.1133.9126.9122.7122.1106.891.891.691.284.578.674.863.850.9

(+1.3)-10.7-13.9+16.4+20.4+19.8+20.8-25.5+28.7-14.9+34.4+15.8+11.1-15.5+ 3.9-16.4+40.3+16.3

U*. flhole

(+17.2). 904 256.8.796 253.6.717 292.6

22272

129129

1297 65811 107

6 45114 888

11 6812 43

105 52258 28847 23413 68

14381169

1791

188

l7032

32144

2 6129 735

12 55

186 1225l 119 50

177 982108 54869 43416 97

23338

20 11242 192

48167

347

727l 6

100 68010 527 38

(101.0) (+1.2)164.6 -11.4 160 870152.2 -12.2 3 U144.6 +16.9 6 29

continued

U.T.ad

GroupNo.

1958

Nov. 28. S 1819036

аЬ

19044190341903519038190411903719039190471904019043190451904819049

Nov. 29. 292190311903019036

аЬ

190341903519038190371904119039190471904019043190451904819049

tov.30.61419036

аЬ

190341905019035190411903719039190471904019043

treasures

Rad. Poe.Dist. Arg.

о

continuée/.555 305.1.606 301.2.514 ЭП.2.564 324.5.555 216.2. 290 206. S. 206 35. 4.298 30.6. 567 14. 2.397 136.6. 327 69. 2. 528 123. 3.790 36.3.778 70.3.947 71.0.969 99.4

(+16.9).958 257.4.819 289.5.664 299.6.729 295.5.623 303.3.648 226.5.402 230.2. 180 338. 1.534 357.2.258 353.7. 305 167. 5.161 55.3.407 135.7.729 29.7.660 67.3.879 69.8.900 100.5

(+16.5).837 293.5.894 291.0.805 295.8.801 237.0.642 288.7.650 248.8.434 306.8.593 337.7.359 215.6. 221 297. 3.282 178.4.657 13.4

ИЯ1

Long.

о

129.7134.2125.3122.8122.2108.694.192.091.384.683.173.863.251.630.626.0

(90.8)163.2144.2128.5134.7124.5122.0109.394.792.692.586.983.273.762.751.830.827.4

(73.4)128.0135.2124.1121.2111.8111.794.589.185.984.872.961.9

Ltlcn

Let.

о

+19.6+19.3+20.8+28.3-25.4-13.8+10.8+16.0+34.3-15.5+ 7.8-15.7+40.4+15.9+18.4-8.8

(+ 1.1)-11.7+16.5+19.9+19.0+20.9-25.4-13.8+10.7+33.2+15.9-16.1+ 6.3-15.8+40.1+15.5+18.2-9.0

(+0.9)+20.0+19.1+21.0-25.2+12.5-12.8+15.8+34.0-16.0+ 6.7-15.4+40.5

Area

Spots

191 Ю3574 539

117 4961 58 31

40 2892 12

41 1996 26

23 1297 28

140 87814 489 64

11 4842 187

67 6817 13

166 84985 38881 4616 32

39 2021 75 10

43 28610 484 51

136 10879 31

11 10514 5728 181

176 97093 47483 496

2 115 31

48 28075 456

1 1833 13822 144

300 15347 38

continued

Group 19042.Group 19043.Group 190 44-.Group 19045.Group 19047.Group 19048.Group 19049.

Nov. 25 - 27.Nov.25-Dec.l.Nov. 2 6 - 2 8 .Nov.27-Dec.7.Nov.28-Dec.4.Nov.28-Dec. 1.Nov.28-Dec.7.

Group 19050. Nov.30-Dec.2.

One or two tiny spots.A small spot.A few faint spots.A stream, of which only the leader remains on December 5.A stream, of which only the leader remains on December 4.A small spot.A pair of spots, developing into a stream, of which the leader isthe sole survivor on December 7.One or two small spots.

Page 72: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 256 ROYAL OBSERVATORY BULLETINS [NO. во

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

GroupNo.

1958

Msesures

Red* Poe.DLst. Arg.

о

Position Area U>T Measures

art

lang. Lat. Uib. *fie <***> **• ***•4 Spots No. Dist. Ang.

о о 1958 о

N3V.30.614 continued1904519051190481904919052

.•

.

.

.

.

434502710735973

DK. 1.43919036

ab

190341905019035190411904719039190401904319045190511407t19048190491905319052

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

923960896888774779579409491335635304367451577585615913

Озс. 2.595190361903419035190501904119039190471407u1904019045190511904919053190541407v190521905519056

GroupGroupGroupGroupGroupGroupGroup

GroupGroupGroup

.

.,...

.

.

.

.

.

.

19051190521905319054190551905619057

190581905919060

974967908895747688634724501264208355415636751802957971

54.168.164.3

102.3111.1

(+16.1)291.4289.6293.1241.1285.6252.1296.0284.4234.2211.0

1.834.458.3

125.459.0

105.679.0

113.3

(+15.7)291.4243.6254.8283.4290.7245.9279.3319.9235.3338.5

16.9116.372.185.2

109.0

116.576.5

104.0

52.145.131.127.1

358.2

(62.5)128.3135.3124.2121.3112.1111.995.085.983.972.861.052.344.040.331.327.925.2

359.0

(47.3)123.3120.3111.4110.193.787.986.281.472.553.043.828.623.98.00.5

357.5334.7331.9

. Nov. 30 -Dec. 7.

. Nov. 30 -Dec. 12.

,,

t

Dec.Dec.Dec.Dec.Dec.

Dec.Dec.Dec.

12223

445

- 10.- 10.- 4.- 7.- 15.

- 11.- 11.- 16.

+15. 5 60 369+11.5 20 139+18. 5 6 52-8.3 41 315-20. 2 28 258

(+0.8)+19.9 116 971+19.0 72 526+20.9 44 445-25. 0 2 8+12.5 6 38-13.3 31 217+15.3 41 297+ 6. 5 29 233-14. 1 10 83-15.8 186 1349+40.0 6 35+15. 2 46 255+11.8 35 176-14. 4 0 4+17.9 1 5- 8. 4 37 290+ 7.4' 21 123-20.7 53 261

(+0.7)+21.0 24 205-25. 2 0 8-13. 5 37 224+12. 2 2 10+15.7 40 266-15. 7 3 18+ 6. 4 42 192+34. 1 5 19-15.8 185 1556+14. 9 24 207+12. 1 32 175- 8. 4 53 359+ 7. 9 41 249+ 3. 6 0 3-13.7 2 5-20. 5 39 261+13. 1 12 29-13. 4 14 94

Efec. 3.282 (+15.4)19035 .964 255.619041 .845 287.619039 .790 249.819047 .749 278.319040 .612 242.119045 .355 312.219051 .219 334.419049 . 219 136. 219053 . 283 62. 21407, .349 45.719054 .493 85.419052 .713 120.419055 .903 75.219056 . 924 104. 819057 . 984 73. 4

Dec. 4.496 (+14.9)19047 .910 277.119040 .789 249.619045 .582 293.119051 .406 297.71407X .331 331.519049 .195 220.019053 . 141 349. 319054 .229 77.819058 . 279 116. 51407y .416 126.019052 . 532 132. 519055 .729 73.819056 .785 107.519059 .934 99.519057 .947 73.8

Dsc. 5.588 (+14.5)19040 .913 251.919045 . 776 286. 21407 1 . 780 292. 519051 .613 288.019049 . 373 246. 519053 .326 296.519058 .124 194.4

a .142 214.319054 .056 329.419052 .395 155.319056 .607 111.719059 .813 100.919057 .844 71.719060 . 976 92. 1

Position Area

lang. Lot. Uib. *°fe

EpOtS

0 0

(38.3) (+0.6)111.994.688.486.372.454.043.829.523.723.49.0

357.3334.6331.9319.1

-13.7+15.1-15.4+ 6.6-16.1+14.3+11.9-8.5+ 8.1+14.7+ 2.8-20.7+13.6-13.4+16.4

1522

219

19228214050

23

355

2716

124149

17159

1421219180279294

1736

27229

135184

(22.3) (+0.4)87.572.355.643.731.829.523.89.47.82.1

357.6336.8332.2313.8311.9

+ 6.6-15.7+13.5+11.2+17.3- 8.2+ 8.3+ 3.2-6.7-13.8-20.6+12.0-13.4- 8.7+15.4

1117416260

30823527

2400

141276

731289

82116

7208390148112

19224

57881

563

(7.9) (+0.3)72.457.556.844.228.025.09.7

12.59.5

357.8332.7314.3311.8290.7

-16.3+12.7+17.5+11.1- 8.2+ 8.6-6.6-6.4+ 3.0-20.6-12.7- 8.6+15.5- 2.0

20292

2226

1068036283899

10825

151966

71412077825182641122376369

821108

A stream of small variable spots.A regular spot,A few scatteredA pair of spotsA small spot.A small spot.A long variableby December 10 ,

with occasional following companions.spots, developing into a stream.

, of which only the leader remains on December

stream, of which the leader becomes a regular

10.

spotwhile the follower dies out by December 14.

A stream, of which the leader is the most stableA persistent small spot.A composite spot, becoming regular in outline byThere are some occasional companions.

component

December

.

12.

Page 73: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 257

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.ad

Measures

Group Rad. Pos.No. Bist. Arg.

1958

Dec. 6.532190401904519051190491905319058

a1905419052190561905919057190601408a190611906219063

DÎC. 7.279190401904519051190491905319058

a190541905219056190591905719060190611906219063

Dec. 8.5441905319058

а19054190521906419059

' 19057

0

( +14. 1).974 253.7.894 284.5. 780 283. 7.565 255.5.519 286.9. 278 245. 2. 340 252. 1.256 281.5.360 184.7.433 119.7.673 102.9.708 68.5.899 92.1.926 68.8.955 91.9.965 96.3.979 79.9

(+13.8).988 255.0.956 283.2.883 281.6. 706 258. 5.646 283.0.442 254.2.506 258.0.419 277.0.405 206.8. 302 134. 1.541 105.8.592 64.6.805 92.2.893 91.8.915 97.2.931 79.9

(+13.3).837 279.9.680 261.1. 736 262. 1.668 275.1.557 230.6.309 137.6.291 119.9.367 46.4

Posi

Lcng.

0

(355.4)71.457.845.728.825.410.014.39.9

357.2332.9314.0312.6291.6289.2282.9281.0277.5

(345.6)66.257.946.829.724.910.915.310.1

356.8332.8314.0312.2292.2282.6279.8277.6

(328.9)25.111.215.810.5

356.2316.6314.2313.0

Ltion

Lat.

о

(+0.2)-15.8+13.0+10.7-7.9+ 8.8-6.5- 5.8+ 3.1-20.7-12.2-8.5+15.1- 1.8+19.6- 1.8-6.0+10.0

( 0.0)-14.8+12.6+10.2- 8.0+ 8.3-6.9- б.О+ 2.9-21.1-12.1-8.5+14.7- 1.8- 1.6-6.5+ 9.4

(-0.1)+ 8.2-6Л- 5.9+ 3.3-20.7-13.2-8.4+14.5

Area

ï u. ïhole"*• Spots

161 14654 33

16 6317 115

104 65990 52438 22219 7444 2308 31

22 58127 87949 260

3 915 28116 3055 41

47 3063 13

10 4810 72

112 693118 72162 32910 6042 223

1 1514 88

113 88855 24590 50283 56318 96

115 588120 77269 42814 2747 3304 26

17 6485 663

continued

Group 19061

Group 19062Group 19063

Group 19064

Group 19065Group 19066Group 19067Group 19068Group 19069Group 19070Group 19071

. Dec. 6 - 18. A compact stream,Only the follower

. Dec. 6

. Dec. 6

. Dec. 8

- 18.- 13.

- 15.

A variable stream

U.T.and

GroupNo.

1958DEC. 8.544

190601906519061190621906319066

Dsc. 9.386190531905419058

a19052190641906719059190571906019068190651906119062190631906619069

Dec. 10. 392190531905419058

a190521906419067190591905719060190681906519061190621906319066190701906919071

Measures Position

Red.Dist.

Pas.Arg.

0

tog.

о

Lat.

0

Area

Ihb. WvleSpots

continued.582.759.723.755.776.915

.931

.817

.811

.853

.683

.229

.322

.155

.271

.404

.625

.657

.578

.607

.638

.816

.961

.978

.961

.930

.948

.822

.328

.364

.224

.291

.189

.508

.550

.370

.419

.472

.677

.658

.892

.900

92.9131.391.598.677.9

110.4

(+12.9)279.2275.0262.1263.2239.0180.8175.8158.019.294.741.0

139.191.6

100.075.1

113.379.5

(+12.5)279.0274.9263.1263.8244.0226.0207.3230.8327.0102.624.1

154.692.4

106.068.7

118.6111.678.780.6

293.5287.9282.8280.4278.9264.3

- 1.7-30.0- 1.1-6.5+ 9.3-18.6

3716

10697

978

23764

58758977

497

(317.8) (-0.2)25.912.211.515.9

356.4318.0316.4314.5312.5294.2290.3288.2282.6281.0279.3265.6244.4

+ 8.5+ 4.0-6.5-5.9-20.7-13.4-18.8-8.4+14.6- 2.1+27.8-29.9- 1.1-6.2+ 9.3-18.9+10.0

757

1399154106

12118

293

21120828

757

62543

799464403

474169

811216

2210469963088

50669

(304.6) (-0.3)22.018.212.615.8

356.8318.6314.7314.7313.9294.0291.2288.9283.0280.8278.2265.8265.6242.2241.0

+ 8.7+ 4.6-6.5-6.0-21.2-13.4-19.1-8.4+13.8- 2.6+27.2-29.9- 1.1-6.9+ 9.6-19.1-14.2+ 9.9+ 8.3

54

1161024262

1165331817

1268611771626

2

5619

665505267431037

4201738097

855647

3852466

16640

breaking up after its central meridian passage.remains on December 7.

, of which the follower dies outA single spot until December 9out.A stream of small

, after

spots, of which the

whichby December 17.

it breaks up and dies

follower is the sole survivorfrom December 13.

. Dec. 8

. Dec. 8

. Dec. 9

. Dec. 9

. Dec. 9

. Dec. 10

. Dec. 10

- 12.- 17.- 10.- 14.- 18.- 13.- 19.

A small stream, of which the leader alone remainsA stream, rapidlyOne orOne orA smallA pairA small

two smalltwo smallstream.

of spots.composite

breaking upspots.spots.

spot.

and dying out afteron DecemberDecember 15.

12.

Page 74: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 258 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

GroupNa.

1958

D3C.11. 53819058190521906419057190591906019068190651906119062190631906619070190691907119072

Dec. 12. 2821905219064190571906019068190651906119062190631907019066190691907119072

Dec. 13. 321190571906419060190681906119062190631907019066190691907119072

Dec. 14. 4051905719064

Group 19072Group 19073Group 19074Group 19075Group 19076Group 19077

Ifeasures Position

Red. Fbs.Bist. Arg.

0

(+12.0).979 261.7.933 247.3.511 243.8.491 299.6.447 252.3.105 244.0.467 354.3.494 178.8.099 95.0.189 126.6.275 49.6. 496 130. 5.462 121.3.752 76.2.755 79.6.967 68.0

(+11.6).977 248.2.644 249.2.623 292.5.279 258.6.513 334.3.519 199.0.083 260.4.120 193.5.170 0.8.337 136.6. 397 143. 4.621 73.8.622 78.0.909 66.6

(+11.2).800 287.0.776 252.8.507 264.0.637 317.4.310 268.4. 297 248. 4.288 318.8. 246 178. 4.302 176.8.420 63.6.427 71.4.804 61.8

(+10.7).913 284.9.905 255.0

. Dec. 11

. Dec. 14

. Dec. 14

. Dec. 17

. Dec. 17

. Dec. 17

Ixng.

о

(289.5)7.5

356.8317.5315.4314.9294.9292.5288.8283.9280.7277.3266.1265.6241.8241.2215.8

(279.7)356.3317.8315.8295.5294.1290.9284.4281.3279.6265.9265.3242.7242.1216.7

(266.0)317.6315.5296.2294.9284.0282.1277.1265.6265.0243.6242.0216.4

(251.7)316.4315.7

- 23.- 15.- 21.- 18.- 23.- 29.

Let.

о

(-0.5)-8.2-21.3"13.5+13.5- 8.2- 3.2+27.1-зо.о- 1.0-6.9+ 9.7-19.2-14.3+10.0+ 7.5+21.1

(-0.6)-21.3-13.7+13.3-3.7+26.8-29.9- 1.4-7.2+ 9.1-14.7-19.1+ 9.5+ 6.9+20.9

(-0.7)+13.1-13.7- 3.7+27.3- 1.2-6.9+11.8-14.9-18.2+10.1+ 7.2+21.8

(-0.8)+13.2-13.9

Area

Spots

5 5327 23221 12654 345

2 1122 1407 446 27

213 1301106 786

8 5677 569

6 2833 24513 5514 103

39 18926 19640 30421 98

2 112 13

222 131892 754

3 1812 14495 67846 27723 10419 189

31 1928 61

22 1193 8

130 96196 611

1 98 74

113 56018 12016 9285 499

33 1648 32

continued

A cluster, developingOne or two small spotsIntermittent. One orA pair of tiny spots.

U.T.and

GroupND.

1958

Dec. 14. 4051906019068190611906219066190691907119072

a1907319074

Dec. 15. 286190571906419060190621906119066190691907119072

a19073

Dec. 16. 373190601906219061190661408b1906919071U08c19072

a19074

Dec. 17. 6 1919062190611906619069190711907519072

a190741907619077

Measures

fed.Dist.

Ibs«Ang.

0

Fbsitim

Long.

о

Let.

о

Area

Uifa. ffioleSpots

continued.696.775.530.536.364.239.206.665.620.878.949

.980

.970

.833

.696.691.487.199.133.547.492.764

.945

.858

.837

.652.422.355.311.099.426.391.724

.972

.942

.821

.589.545.547.403.417.552.808.962

265.4306.9268.7258.8214.337.850.055.153.072.071.0

(+10.3)283.3255.7265.9261.0268.9232.1345.9341.545.139.969.2

(+9.8)266.4263.2268.6242.2243.8303.5295.0161.823.713.365.1

(+9.2)263.3269.4248. 1287.3282.7233.5347.6335.9

55.1107.469.9

295.6295.6283.6283.6264.1243.2242.6215.9219.8192.0181.5

(240.1) (317.8315.5296.3283.7283.6263.9242.9242.5215.6220.4192.6

(225.8) (296.5284.6282.4263.1248.4243.2242.2224.0215.2220.3182.6

(209.4) (285.6279.6262.6244.0241.6237.2214.7219.9181.2156.7136.9

-3.8+27.1-1.4-7.2-18.2+10.0+ 6.8+21.7+21.2+15.3+17.7

- 1.0)+12.8-14.1-4.0-6.9-1.5-18.2+10.1+ 6.3+21.7+21.2+15.0

- 1.1)- 3.7-6.4-1.8-18.5-11.7+10.2+ 6.5-6.5+21.8+21.2+16.9

- 1.3)-6.8- 1.0-18.5+ 9.0+ 5.7-20. 1+21.8+21.0+17.2-14.7+18.9

253

136102802022

1335486

54

1797

109. 79

2123

10938

5

47585947

18

211

66246

11522156

224

7541

75775

16212

859758700125100695269

2324

3220

10959352946610886

589215

25

143820493357

116280

864123446

1041138130

5513119

58423166

325256

into a stream of normal type..two variable spots.

A stream of small- spots.A regular spot, with a few companions until December 20.

Page 75: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 19 s s С 259

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.and

Group№.

1958

D3C.18.458190621906119069190711907519072

•19074190761907719078

Dec. 19. 4071907119072

a1408d190761907719078

Dec. 20. 4561907919072

a1907619077190781908019081

Measures Position

Red.DLst.

.991

.990

.699

.691

.670

.467

.517

.447

.684

.905

.989

.832

.589

.658

.397

.542

.810

.941

.909

.735

.802

.363

.671

.849

.895

.995

Pos.Ang.

0

(+8.8)262.2269.7284.6280.2241.5327.6317.743.7

111.568.3

113.1

(+8.4)278.2ЗП.8305.7304.0118.065.0

114.1

(+7.9)251.8302.6298.5134.4

59.1116.375.1

109.4

Long.

о

( 198. 3)280.4279.9241.3241.3236.9213.9220.1179.5157.1135.8117.1

( 185. 8)241.5213.9219.8205.3156.1135.1117.0

(172.0)236.4213.8221.0156.4134.7116.5109.887.8

Lat.

о

(- 1.4)-7.9- 0.6+ 9.1+ 6.0-19.7+21.8+21.1+17.5-15.5+18.9-23.1

(- 1.5)+ 5.9+21.7+21.3+11.4-16.0+19.0-23.1

(- 1.6)-17.2+22.1+21.4-16.2+18.8-23.0+12.5-19.4

Area

Uib.

7210

174

105390

475013

464160

616629

557233246214

10

RuleSpots

69120

38326

705212

2317283141

41637220

7324299158

15483168211263138

19125

U.T.and

GroupND.

1958

Dsc. 21. 446190801908119083

Dec. 22. 45219072

a1907619082190771408/1907819080190811908319084

Dec. 23. 610190721907619082190771907819085190811908319084190861908719088

Measures

Rad.Dist.

Pos.Arg.

о

Position

Long.

о

Let.

о

Area

Uib. VholeSpots

continued.772.958.987

.944

.973

.326

.191

.405

.638

.592

.578

.875

.950

.986

.986

.519

.357

.366

.426

.481

.734

.847

.914

.946

.960

.977

72.4109.6106.4

(+7.0)294.1292.7221.7351.2

27.844.9

127.264.7

110.8106.377.0

(+6.4)293.1240.6301.2351.1145.263.0

114.5107.874.9

112.775.469.2

110.286.278.3

(145.7)213.8220.2158.7147.4134.2116.0115.1113.586.174.466.3

(130.4)208.8158.4148.3133.8115.2104.685.673.565.860.457.954.6

+12.4-19.3-16.4

С 1.9)+22.0+21.5-15.8+ 8.9+19.1+25.1-22.5+12.7-19.0-16.0+12.5

(-2.0)+22.3-16.5Ч- 8.7+19. 1-22.3+10.7-19.1-16.1+12.9-22.0+13.4+19.8

33670

642866

443

140

4016664

644

4892

4320661112621

15227964

3571834749

2361768

4220

1629456

583245

2206027

2551608615

70215145

Dec. 2 1.4461907919072

a190741907619082190771408e19078

.981

.853

.907

.457

.260

.294

.529

.674

.730

(+7.4)253.0297.4294.8310.2176.949.547.854.0

120.0

(158.9)237.5213.5220.9180.1158.1145.9134.5123.0117.1

(- 1.7)-17.0+22.0+21.5+15.5-16.7+ .9.3+19.2+21.9-22.6

05?27

2147

481

15

,15388140

138129

2304

90

Dec. 24. 58319082190771408g19078190801908119083190841408h

.531

.445

.167

.355

.266

.585

.712

.804

.846

(+6.0)290.4324.0

0.6172.115.4

120.7111.072.768.5

(117.6)147.7133.6117.5114.6113.585.674.066.062.5

(-2.1)+ 8.8+19.0+ 7.5-22.6+12.7-19.1-16.2+12.5+16.8

1329491

32167474

82198332820

2391368439

15continued continued

Group 19078.Group 19079.Group 19080.

Group 19081.Group 19082.

Group 19083.Group 19084.Group 19085.Group 19086.Group 19087.Group 19088.

Dec. 18 - 25.Dec. 20 - 21.Dec. 20 - 30.

Dec.20-1959 Jan.2.Dec. 21 - 28.

Dec.21-1959 Jan.3.Dec.22-1959 Jan.3.

Dec. 23 - 29.Dec. 2 3 - 2 9 .Dec. 23 - 30.

Dec.23-1959 Jan.4.

One or two small spots.A small spot.Intermittent. At f i r s t a few variable spots. On December 25a small stream develops, of which only the leader remains byDecember 29.A regular spot, with a few companions on December 24.A stream, of which the follower is the sole survivor afterDecember 26.A large variable group.A group of variable spots.A stream of variable spots, not seen on December 24.Two or three small spots.A small spot, which breaks up on December 27 and then dies out.A variable stream, of which only a small spot remains onJanuary 1. There is a revival of activity in the same area onthe next day.

Page 76: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 260 ROYAL OBSERVATORY BULLETINS [NO. 60

POSITIONS AND AREAS OF SUNSPOTS FOR EACH DAY IN THE YEAR

U.T.aid

Groupto.

1958

Dx.24.S8319086190871908819089

D». 25. 306190821907719078190801908519081190831908419086190871908819089

Dae. 26. 2801908219077190801908;1908119083190841908619087190881908919090

Пас. 27. 5201908219077190801908514081190811408)19083190841908619087190881908919090

Dsc. 28. 33719082

Measures

Red.DLst.

Pas.Ang.

о

Fbsition

Lang.

о

Lot.

о

Area

Uiix «holeSpots

continued.845.877.935.976

.663

.539

.364

.266

.213

.465

.589

.700

.773

.794

.879

.945

.799

.681

.421

.258

.329

.426

.537

.642

.653

.772

.861

.975

.920

.844

.642

.470

.573

.314

.177.253.318.444.454.613.694.874

.974

114.973.268.382.2

(+5.6)285.7311.5196.2338.6

14.9129.6115.369.5

118.070.866.981.7

(+5.1)282.9301.9309.1332.3152.5124.862.3

123.165.563.179.993.3

(*4.5)281.3294.8294.9297.1322.9201.9220.7163.940.7

136.752.755.277.393.1

(+4.1)280.1

62.158.150.840.8

( 108. 1)148.1133.3114.4113.8105.085.974.666.160.657.849.537.9

(95.3)147.2132.9114.8102.386.174.066.259.957.748.836.818.4

(78.9)144.8132.9115.6103.9101.886.085.674.766.759.956.247.036.118.1

(68.2)144.2

-22.0+13.6+19.4+ 7.1

(- 2.2)+ 8.6+18.9-22.6+12.1+ 9.7-19.2-16.4+12.5-22.6+13.7+19.0+ 7.1

(-2.3)+ 9.1+19.2+13.2+10.8-19.1-16.2+12.4-22.3+13.9+18.8+ 7.5-3.0

(-2.5)+ 9.4+19.2+13.6+10.0+24.8-19.3-10.2-16.5+11.5-21.1+13.6+18.3+ 6.9- 3.9

(- 2.6)+ 9.2

7135745

931

232

4217232

5193561

3435232342

155497

16SI7838

164226204

341

113223

13435744

22

31126353138

79180

112420

2061050273

1388

187401

230211152140227

1115282

3998

309400186

10819322S11824

1967

8511343680

339401163

139continued

U.T.ad

GroupNo.

1958

EEC. 28. 337190771909119080190851908119083190841908619087190881908919090

Dec. 29. 377190771909119080190851908119083190841908619087190881908919090

EBc.30.475190801909219093190811908319084190871908819089190901909419095

Dec.31.28019092190931908119083190841908819089

. 19090190941909619095

Measures

Red.DLst.

Pos.A«.

о

Position

Leng.

о

Lat.

о

Area

Uib. «nieSpots

continued.923.835.771.638.410.263.247.339.335.499.559.768

.984

.931

.906

.794

.567

.424

.309

.343

.293

.388

.354

.592

.981

.836

.780

.736

.595

.499

.417

.365

.190

.367

.871

.883

.939

.876

.842

.736

.636

.451

.230

.187

.801

.763

.781

292.3282.3290.1288.1225.1201.6

6.9165.031.145.972.392.7

(+3.6)290.6280.9286.9284.5239.3235.0320.1199.5349.824.360.493.2

(+3.1)284.3285.0296.4246.4246.5300.0313.9345.0

15.593.564.9

109.7

(+2.7)282.3292.1249.3250.9296.3321.6323.195.759.3

105.9112.7

132.8123.6116.2106.086.073.866.562.858.046.235.818.1

(54.5)132.2122.1117.6105.585.475.666.161.557.644.936.918.3

(40.0)117.595.187.485.574.366.158.045.737.118.6

343.1338.9

(29.4)98.087.685.575.566.246.937.418.7

341.6340.5339.8

+19.3+ 8.7+13.6+ 9.3-19.2-16.7+11.5-21.7+14.0+17.8+ 7.5-3.7

(- 2.7)+19.6+ 9.1+14.1+ 9.7-19.1-16.5+11.0-21.5+14.0+18.0+ 7.5-4.1

(- 2.8)+13.4+10.9+18.8-19.4-16.0+11.9+14.1+17.8+ 7.7-3.8+20.1 .-18.7

(- 2.9)+10.4+17.6-18.8-15.9+13.9+17.9+ 7.7-4.0+22.1-13.9-19.4

402

352045

118213

11475036

303

3012459323

52

394134

152

212477321

21333220

2

3264288628

20361825

21221

2001391927251503254

263245182

19215

165133224681255

4731

225231161

1312793

169601199

8139161154756

916621487232970

157157872125

Group 19089. Dec.24-1959 Jan. 5.

Group 19090.Group 19091.Group 19092.Group 19093.Group 19094.Group 19095.Group 19096.

Dec. 26 -1959 Jan. 7.Dec. 28 - 29.Dec. 30-31.

Dec. 30 -1959 Jan. 1.Dec. 30-1959 Jan.10.Dec. 30 -1959 Jan. 3.Dec. 31- 19 59 Jan. 7.

A stream, of which the leader has died out by December 28.The following components include a regular spot which is thesole survivor by January 2.A regular spot.One or two tiny spots.One or two small spots.A small stream, developing near the west limb.A variable stream.A few small spots.A short stream, of which only the leader remains on January7.

Page 77: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

GENERAL CATALOGUE

OF SUNSPOTS

FOR THE YEAR 1958

Page 78: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 262 ROYAL OBSERVATORY BULLETINS [No. 60

GENERAL CATALOGUE OF GROUPS OF SUNSPOTS FOR THE YEAR 1958

Groups of sunspots, lasting for two or more days, are numbered in the first column in

continuation of the group numbers given in R.O. Bulletin No. 26. Groups seen on one day only

are not included in this catalogue but are given with a distinctive numeration in a following

table on page С 278 .

The second column gives the U.T. of the central meridian passage of each group as deduced

from its mean longitude (given in the tenth column). For those groups which are in existence

at the time of the central meridian passage of their longitude, the time is given to оА)1,

corresponding to O.°13 of solar longitude. In other cases, in which groups disappear before or

appear after the central meridian, the deduced time is given to 0?1.

The third column gives the duration of each group in days. Intermittent groups, i.e.,

groups which are not seen upon the photographs of every day between their first and last

appearances, are indicated by a fraction, the numerator of which represents the number of days

on which they are actually observed, the denominator being the number of days covering the

extreme limits of observation.

The fifth and seventh columns, headed 'Longitude from central meridian', give, for the

days on which each group was first and last seen respectively, the heliographic longitude

from the meridian passing through the centre of the Sun's disk at the time of observation,

longitudes west of the centre being reckoned as positive.

The mean areas for umbra» and whole spots entered in the eighth and ninth columns are

corrected for the effect of foreshortening and are expressed in millionths of the Sun's visible

hemisphere.

The tenth and e ./eveníЛ columns give the mean heliographic position of the group in longi-tude and latitude respectively.

When a group is 80° or more from the Sun's central meridian, or in cases of close proximity

to the Sun's limb when only part of the group is visible, the measures for that day are not

included in taking the mean area or the mean longitude and latitude of the group.

The twelfth column gives reference to recurrent groups. The numeration is in continuation

of the recurrent series given in Ledger I of the GreenwicA Photo-Heliographie Results for 1955;

bracketed numbers indicate the order of a group in the series.

With reference to the identification of recurrent groups, it should be noted that longi-

tudes are based on the ephemeris given in the Nautical Almanac, assuming a solar rotation

period constant at all latitudes. After an interval of one rotation, recurring groups will,

therefore, show in general - apart from any proper motion they may have of their own - apparentdrifts in longitude varying in amount according to their respective latitudes. The following

table, derived from the formula | = 14.°37 - 2.°60 sin2 ф, gives the apparent drift in longitude

appropriate to different latitudes after an interval of 27 days, a drift forwards corresponding

to an increase in heliographic longitude.

Latitude Drift Latitude Drifttorva rds backwa rds.

0° .. .. 5° 20° .. .. 3°

5° .. .. 4.5 25° .. .. 7.510° .. .. 3 30° .. .. 12.5

15° .. .. 0.5 35° .. .. 18

Page 79: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 263

GENERAL CATALOGUE OF SUNSPOTS

No. ofGroup

1843536373839

1844041424344

1844546474849

1845051525354

1845556575859

1846061626364

1846566676869

1847071727374

1847576777879

First Seoi

U. T. ofC.M.P.

1958

Jan. 6. 416.156.87.217.23

4.6910.2810.257.129.7

11.3512.588.66

11.7511.11

13.8415.0515.279.1

13.47

15.015.6416.359.5

16.08

17.2913.8519.016.820.69

20.512.517.1021.6521.8

22.022.2822.9522.8222.99

23.4320.1621.5024.1619.9

Dura-tion

d

793

1112

7131283

13136

102/3

91213

210

28

113

11

13663

13

433

125

48

128/9

8

124/6

7127

Date

1958

Jan. 11111

24455

56789

999

1010

1010101111

1112131414

1416161616

1617171717

1.718181820

Long,fromCM.

0

-63-64-70-72-76

-31-76-79-24-59

-81-80-12-46-21

-58-72-75+15-41

-62-70-81+25-63

-76-16-72-27-77

-78+48-11-71-73

-74-67-72-72-76

-80-21-42-72+10

Last Seen

Date

1958

Jan. 793

1112

81615127

1718121711

1720211119

1117201321

2317181626

1718182720

1924282524

2823242926

Long,fromCM.

о

+10+46-44+55+68

+47+79+69+69-29

+80+75+46+75+ 3

+45+70+80+30+79

-46+22+56+53+74

+82+44- 8- 8+71

-43+80+17+77-18

-34+28+69+34+20

+65+43+42+64+82

CorrectedMean Area

Utt.ru:

9142

7914

222829123

1082922121

263125

324

35

275

39

21621

54

61

4156

112

42226

79

91

112754

«holeSpots

507815

59575

1071821828623

788149132706

21021015320

151

1627

12727

267

11801602425

299

2794443712

201181462946

568

72171413

MeanPosition

Long.

0

86.389.580.975.875.4

108.935.335.776.842.6

21.25.0

56.616.024.3

348.4332.5329.6

50.3353.3

333.7324.7315.445.8

318.8

302.9348.3281.0310.0258.3

260.76.4

305.6245.5243.2

241.6237.2228.5230.2227.9

222.2265.1247.5212.5268.8

Let.

0

+30.9+ 3.8-21.9+10.9-17.7

-22.7-28.7-17.2+17.2+14.0

-11.7+24.4-38.9-18.2+25.3

+24.8+28.5-23.1+33.6-21.8

+12.8+14.8- 4.7+25.7- 8.3

+12.0+20.6+21.7+15.1+21.4

-15.7-13.9-12.0+23.6+ 4.9

-17.4+22.1+27.5-12.2+19.7

-19.7+17.9+31.0+28.7-24.8

Reference

1793 (3)1798 (2)

1800 (2)

1802 ( 1)

1803 ( 1)

1799 (2)

1795 (3)

1804 ( 1)

Page 80: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 264 ROYAL OBSERVATORY BULLETINS [NO. 60

GENERAL CATALOGUE OF SUNSPOTS

First Seen

No. ofСгоцр

U. T. ofC.M.P.

1958

1848081828384

1848586878889

1849091929394

1849596979899

1850001020304

18505Об070809

1851011121314

1851516171819

1852021222324

Jan.

Feb.Jan.

Feb.

Jan.

Feb.

Jan.Feb.

20.8525.8926.4926.2021.6

27.9827.526.4428.2330.35

31.872.1

28.731.6431.96

5.815.99

28i528.7

6.89

8.134.289.338.05

10.10

10.1231.78.283.19.6

13.0613.303.5

12.816.6

11.9417.7917.318.3015.72

20.720.6513.717.9422.05

Dura-tion

d

5121372

11589

11

127447

812238

147

148

10/11

12272

2/4

813224

713

4/5124

59478

Date

1958

Jan. 2020202122

2223252525

2626293030

3131

Feb. 111

12244

45566

7789

10

1111121214

1414161616

Long,fromCM.

0

- 4-71-78-64+12

-72-55-12-36-62

-73-84+ 8-18-22

-72-81+53+50-72

-88-29-86-51-72

-77+65-34+41-43

-76-80+62-43-SI

- 7-80-62-75-16

-79-81+40-22-71

Last Seen

Date

1958

Jan. 2431

Feb. 1Jan. 27

23

Feb. 1Jan. 27Feb. 1

24

61125

711238

148

151114

156

1179

14199

1013

1723162317

1822192223

Long,fromC.M.

о

+48+69+79+15+24

+58- 3+78+68+61

+71-11+50+24+61

+19+76+65+76+18

+85+56+73+49+60

+71+74+43+56- 2

+19+79+80-31-44

+73+71- 7+68+23

-28+23+74+61+17

CorrectedMean Area

Uibre

5261732

183

245142

281464

25

149189

15

13311

121194

1746

521

10201

616

2424

32112

159

1288

«holeSpots

21162771510

9822

140324198

151683217

134

72587

183555

64751

7468530

8727833114

521036

248

26

14214519

12250

9151653242

MeanPosition

Long.

о

256.1189.8181. 8185.7246.8

162.2168.7182.5158.9131.0

111.094.8

152.3114.0109.8

46.043.6

155.6152.431.8

15.466.1

359.716.5

349.4

349.2113.813.481.7

355.8

310.4307.3

76.6314.4263.5

325.3248.2254.4241.5275.5

210.3210.6302.4246.2192.1

Let.

о

+37.8-16.8- 8.5-20.7-13.0

+18.0-27.6-19.2-10.3+21.8

+19.6-27.3+24.5+14.8-6.1

+25.7-13.1-13.5-30.3-12.0

-14.3+10.0-19.3+18.7-15.7

+25.2+30.0-9.3+ 9.4+23.4

+19.2+11.2-17.2+12.3-24.5

+ 9.1+23.2+14.7+ 6.3+12.7

+20.2-14.9+20.9-14.8-18.5

Reference

1801 (2)

1797 (3)

1805 (1)

1806 ( 1)

1802 (2)

1804 (2)

1803 (2)

Page 81: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHic RESULTS 19je С 265

GENERAL CATALOGUE OF SUNSPOTS

No. ofСгоцр

1852526272829

1853031323334

1853536373839

1854041424344

1854546474849

1855051525354

1855556575859

1856061626364

1856566676869

U. T. ofC.M.P.

1958

Feb. 22. 1223.2123-7014.821.5

17.420.322.3022.6221.4

24.625.9128.5625.42

Mar. 2.6

Feb. 22.9Ufer. 3.0Feb. 27.70Mar. 1. 28

7.48

6.847.408.13

Feb. 27.9Mar. 6.03

7.179.011.87.857.3

8.911.8312.6911.6613.44

12.0713.98.6

17.3118.41

8.112.219.8920.7720.5

Eure-tien

d

13131322

27477

26/7

1084

23

3/58

14

8131039

1111/12

582

21113

512

622

1013

25

1285

First Seen

Long.Date from

C.M.

1958

Feb. 1616171919

2020202021

2222222424

2525272828

Mar. 11233

33445

66688

1010121212

1313141415

о

-71-«5-80+60-27

••41+ 3-23-32+ 2

-30-43-78-14-«2

+32-77- 4-9-86

"72-76-77+46-38

-51-75+35-47-23

-29-72-во-45-69

-24-48+51-66-78

+71+14-67-80-66

Last Seen

Long.Date fron

CM.

1958

Feb. 2828

Mar. 1Feb. 20

20

2126232627

2328

Mar. 33

Feb. 27

2627

Mar. 37

13

81311

511

13148

116

716181219

1511132124

1417252119

о

+82+68+79+76-15

+53+82+14+54+79

-15+31+35+79-42

+48-45+49+79+75

+22+79+44+72+72

+74+73+83+47- 9

-20+67+77+12+79

+46-34+63+54+73

+84+72+70+ 8-11

CorrectedMean Area

... Vlhole4*'« Spots

77233462

22893

80

15

3074

7

431

43170

570

97

85

10314

11861

21555

5112

960

1370

49

4053

4601371843620

10134

3411

415

1820

264457

64

17294

2641253

29328

5230

450

65377

8382813

2180

34223

882

56286

61538

1650

2612712

MeanPosition

Long. Let.

0

191.2176.8170.4287.7199.0

253.7214.8188.8184.7200.2

158.2141.3106.3147.879.0

181.473.8

117.696.915.2

23.616.36.6

115.134.3

19.3355.090.610.318.0

357.0317.9306.6320.1296.7

314.7290.0

0.9245.7231.2

7.1312.9211.6200.1203.3

о

-15.0-25.0-12.0+ 5.6+17.4

+15.6- 5.1+11.6- 9.5-22.2

-9.3-33.9+30.9-15.0-24.8

- 6.8+ 6.2+14.4-23.7-18.0

-11.3-14.8+16.4-10.9+24.0

+31.9+22.6-12.2-11.9-9.0

-18.0+14.6+10.3+21.3+13.3

+12.3+17.8-20.1+15.5+12.3

-33.6-13.0+36.1-23.4-11.8

Reference

1806 (2)

1805 (2)

1807 ( 1)

1808 ( 1)1809 ( 1)1810 ( 1)

1802 (3)

1811 (1)

1812 (1)

Page 82: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 266 ROYAL OBSERVATORY BULLETINS [NO. 60

GENERAL CATALOGUE OF SUNSPOTS

No.ofGrotp

1857071727374

1857576777879

1858081828384

1858586878889

1859091929394

1859596979899

1860001020304

1360506070809

1861011121314

U. T. ofC.M.P.

1958

Mar. 20.614.022.2013.922.4

22.7523.5424.224.5318.1

24.2726.626.9820.928.96

28.4529.3230.3927.2327.53

Apr. 2. 222.753.77

Mar. 25.528.9

Apr. 4. 484.24.565.101.61

6.416.697.88.43.53

9.459.828.068.629.8

5.7710.28.89.23

11.22

Dura-tion

d

32

1322

12124

135

7/82

125

14

101315109

13131032

136

1312/13

8

8/97537

131310105

5427

4/6

First Seen

Long.Date from

CM.

1958

Mar. 1516161717

1718181819

1921212222

2323232425

2727282929

2929293031

31Apr. l

223

33444

55666

о

^67+33-74+46-65

-70-64-73-74+19

-60-68-72+21-81

-64-74-84-43-31

-76-79-83+51+ 7

-76-76-82-78-20

-76-70-71-79- 2

-80-79-48-58-72

- 3-61-33-38-64

Last Seen

Long.Date from

CM.

1958

Mar. 1717281818

2829213023

2622

Apr. lMar. 26Apr. 4

14622

886

Маг. 3130

Apr. 103

10117

87649

151513138

987

1211

о

-42+44+80+63-49

+72+79-38+80+72

+25-53+70+73+83

+54+78+84+85+81

+81+70+34+78+20

+72-10+77+79+79

+25+10-19-53+80

+78+71+74+68-19

+49-25-19+42+ 4

CorrectedMean Area

«-ÎA

51

2260

186273

9537

14

263

184

1244

2134329

1577321294

1386

672829

71255

16

925798368

125282

4110

100238

1076137

12531192

1120

15116

1269

68271

1325276148

95431485

24229

92536

375177169

4352213793

47133562420253

51249

3610

MeanFbsition

Long. Let.

о

202.0289.2181.2290.9179.0

173.9163.5154.4150.5234.7

153.9123.0118.2198.492.0

98.887.373.2

114.8110.9

35.828.915.4

137.693.0

6.09.85.0

357.843.8

340.5336.9322.5314.5

18.6

300.5295.5318.8311.4295.5

349.0289.9308.8303.3277.0

0

+17.8+44.8-16.1+ 6.3- 5.3

+21.7+ 9.2-15.2+24.6+18.8

-23.3+15.2+19.5- 8.4-12.7

+19.0- 6.8-21.8- 6.6- 3.7

-16.5+25.1-15.5+23.7+ 8.8

+32.7+18.9-16.8+20.7+ 7.5

+27.0+11.8-22.2-26.3-25.2

+12.0+15.1+15.8+11.0+ 7.1

+24.3+42.3-10.0-14.6+44.1

Reference

1813 (D

1810 (2)

1814 ( 1)1807 (2)1805 (3)

1808 (2)

1815 (1)1809 (2)

1811 (2)

1802 (4)

Page 83: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGKAPHIC RESULTS 19se С 267

GENERAL CATALOGUE OF SUNSPOTS

First Seen

No. ofGroup

1861516171819

1862021222324

1862526272829

1863031323334

1863536373839

1864041424344

1864546474849

1865051525354

1865556575859

U. T. ofC.M.P.

1958

Apr. 12.7914.16.38.0

10.46

12.8315.7410.418.010.3

15.9619.0013.021.0021.01

15.221.1313.313.915.1

22.423.2716.718.4818.55

24.9225.4825.9326.3727.32

27.524.0328.729.4728.3

29.8May 1.30

1.841.833.09

Apr. 29.27May 1. 47

2.8Apr. 25.4

29.85

Eüra-tion

d

643

4/52

57363

4125

139

29/10

225

4/513525

811

6/81313

432

132

213131314

47223

Date

1958

Apr. 8899

10

1010111213

1313141415

1616171717

1717181818

1920202021

2123232325

2525252526

2727272828

Long,fromCM.

0

-59-74+39+17- 2

-32-72+15-69+43

-32-68+20-84-72

+16-63+53+44+28

-69-79+22- 2- 3

-72-69-70-77-79

-79-10-70-eo-40

-60-76-81-85-82

-23-50-69+40-18

Last Seen

Date

1958

Apr. 1311111311

1416131715

1624182623

1725181821

21.29221922

263027

May 23

Apr. 242524

May 5Apr. 26

26May 7

779

Apr. 30May 3Apr. 28

2930

Long,fromC.M.

о

+13-37+69+75+14

+22+ 9+42-12+68

+ 5+73+72+76+27

+28+54+66+59+79

-15+81+75+14+50

+24+68+20+79+82

-42+18-57+79-23

-40+79+76+75+83

+15+28-58+51+ 5

CorrectedMean Area

Uibrse

810

754

71033

14

63514

16716

612156

242120

13

7135

6440

522

852

238

12728

198

210102

flholeSpots

6294392222

3345261498

30208

761226

95

3260225442

2024669

471

408030

399232

248

20455

15

12197799139

1332

856131015

MeanFbsiticn

Long.

о

256.3239.3341.6319.4287.2

255.8217.4288.0187.2289.8

214.6174.3253.9147.9147.3

224.8146.2249.3241.3225.8

128.8118.0204.6181.2180.3

96.188.882.877.064.5

62.5107.946.436.150.8

32.011.84.74.8

348.2

38.79.6

352.089.331.0

Let.

о

-14.1+13.7+10.0+11.6-11.6

-22.0- 4.6+14.9+39.7+25.6

-15.4+18.1-10.8-21.8+39.2

+ 7.1+23.1-6.9+13.0+19.3

- 8.9+12.7-25.8-21.4+35.1

- 5.5+ 7.4-12.4+10.3+16.5

+ 8.8-24.6+13.2-16.3+15.7

+ 8.4+27.9+17.7-17.1-14.7

+15.0-24.6+19.4-16.2-13.1

Reference

1812 (2)

1813 (2)

1816 ( 1)

1814 (2)

1815 (2)1817 (1)

Page 84: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 268 ROYAL OBSERVATORY BULLETINS [NO. 60

GENERAL CATALOGUE OF SUNSPOTS

First Seen Last Seen CorrectedMean Area

MeanRjsition

No.ofGroup

1866061626364

1866566676869

1867071727374

1867576777879

1868081828384

1868586878889

1869091929394

1869596979899

1870001020304

U.T. ofC.M.P.

1958

Apr. 25.529.629.9

May 1.281.39

2.855.96.887.236.0

6.524.206.262.19.7

10.1211.58.1713.09.48

13.8114.9510.315.9412.5

17.010.518.5219.3921.17

15.623.4219.0320.3916.2

24.827.0022.3426.9823.41

25.025.6628.8629.9030.04

Eüra-:ion

d26543

82

12132

113843

133

6/85/6

8

10142

133

24

131212

213793

5138

128

37

101214

Date

1958Apr. 29

303030

May 1

11112

23344

45678

8899

10

1112121315

1617181819

1920212122

2223232323

long.fromCM.

о

+52+10+ 7-14- 2

-23-62-73-75-47

-56- 6-36+32-67

-73-78-22-71-12

-73-82-12-83-31

-73+24-80-80-72

+10-76- 7-26+45

-69-85-12-74-14

-34-30-73-79-65

Date

1958

Apr. 30May 5

433

82

12133

125

1076

167

131215

1721102112

1215242426

1729242621

23June 1May 28June 1May 29

2429

June 135

Long,fromCM.

0

+62+78+65+31+30

+79^47+71+80-34

+75+18+53+73-40

+82-52+74- 9+78

+51+84

0+72- 2

-62+66+78+72+62

+24+73+75+78+69

-19+74+78+76+77

- 6+46+52+60+82

thbras

34

1163

412

33128

0

182

10171

40234

28

19564

293

36

475245

43930188

828383713

111122352

WholeSpots

1940743724

2666

206669

6

971764829

218142116

170

106373

12239

16

2032

242284293

2422817210447

4815321822066

66366

141306

Long.

о

88.135.029.912.210.6

351.4310.5298.1293.4309.6

302.8333.5306.3

1.4261.3

255.2236.8281.0217.5263.7

206.5191.4253.2178.3223.4

163.8250.6144.2132.6109.1

183.079.3

137.4119.4175.2

60.632.093.632.279.5

58.549.7

7.3353.6351.8

Let.

0

-29.0+23.8+29.0+12.8+21.7

+23.7-24.9+10.7+25.8-14.2

+ 1.8+15.5+24.4+26.0+22.4

+14.0-22.3+13.0-4.5+ 7.9

- 7.1-17.5+18.6-20.2-13.5

+ 9.8- 8.2-23.8- 6.8+40.3

-14.2+22.1+24.6-23.6+18.4

+17.8-15.4+ 9.4+ 9.1-12.3

-19.3+ 7.3+20.4-17.2-13.0

Reference

1818 ( 1)

1811 (3)1819 (D

1820 (1)

1816 (2)

1814 (3)

1817 (2)

Page 85: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 19se С 269

GENERAL CATALOGUE OF SUNSPOTS

First Seen

No.ofGroup

1870506070809

1871011121314

1871516171819

1872021222324

1872526272829

18730 '31323334

1873536373839

1874041424344

1874546474849

U. T. ofC.M.P.

1958

Шу 20.623.229.8528.0

June 1.59

May 29.0431.35

June 2.52May 24.8

30.56

30.85June 3.1

2.84.47

»fay 31.63

June 4.72May 28.8June 1.1

3.06.5

8.5710.084.69.76

10.60

10.423.6

12.1713.1414.2

15.411.6111.817.417.80

18.8013.217.1621.8522.84

15.023.519.524. 7324.55

Dura-tion

d

23

7/83

13

5/68

1324

1044

138

92462

11153

1310

72

7/862

6725

12

1323

128

222

1211

Date

1958

May 2424242526

2727272828

2828292930

3031

June 333

33444

78889

910101112

1213151616

1717181819

Long,fromCM.

0

+53+19-70-32-78

-19-50-75+47-30

-32-77-63-81-17

-70+33+31+ 7-41

-69-80+ 2-62-79

-37+65-48-60-63

-79-16-18-81-72

-79+ 1-21-74-80

+31-81-16-78-69

Last Seen

Date

1958

May 25263127

June 7

138

May 2931

June 6May 31June 1

106

71684

13176

1613

139

151310

1416111523

2414172723

1818192929

Long,fromС. M.

о

+66+44+20-6+80

+47+43+77+57+10

+80-37-14+78+77

+38+52+69+74-24

+65+85+24+78+37

+37+77+44+ 3-50

-12+63- 6-26+75

+72+18+ 3+74+ 8

+44-68- 2+64+70

CorrectedMean Area

ШЬгв

2641

31

53

4615

69б3

7319

523

420

24212

98819

56633

10512

91

5111

1318

236

2121

«holeSpots

1428199

171

3416

2631041

4433516

376123

321427

26811

1451587

59573122

3138361815

69278

11580

26476

77116

101062

188141

MeanPosition

Long.

о

117.082.5

354.319.1

318.0

4.9334.4305.761.3

344.8

341.0297.6302.4279.8330.7

276.58.6

324.3299.7252.6

225.7205.6278.7209.4198.7

201.1291. 8177.9165.1151.6

135.6185.3183.1108.6103.4

90.2164.2111.949.836.7

140.728.080.811.814.0

Let.

0

-17.4-29. 5+24.4+19.9-14.5

+14.8-30.9+25.4+20.1-16.9

+28.3+11.6+17.8+25.4+17.5

-21.7+12.5-17.1+16.7+11.4

-22.2+28.2+ 9.6+43.4-17.4

+15.7+ 6.8-16.9+14.4-12.7

-24.2-25.5-9.0+ 9-1+15.2

-26.0-23.0-20.3+ 6.4+20.4

-9.4-15.1+11.8+15.0+10.6

Reference

1818 (2)

1811 (4)

1819 (2)

1820 (2)

1816 (3)

1821 (1)

Page 86: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 270 ROYAL OBSERVATORY BULLETINS

GENERAL CATALOGUE OF SUNSPOTS

[NO. 60

to. ofGroup

1875051525354

1875556575859

1876061626364

1876566676869

1877071727374

1877576777879

1878081828384

1878586878889

1879091929394

U.T. ofС.М.Р.

1958

June 25. 8226.2419.225.728.0

27.228.7529.1529.8523.7

23.230.5726.8329.7

July 2.0

June 27. 85July 2.2

4.565.871.79

4.395.827.657.628.1

3.426.72

10.746.10

13.06

15.1016.7818.2618.7118.83

13.1515.6920.7019.821.53

16.7720.916.419.8823.25

Dura-tien

d

97523

41211132

27334

22

13137

107

14132

68

127

12

1311131113

289

2/39/Ю

5/6426

11

First Seen

Long.Date from

CM.

1958

June 2020212222

2323232324

2525262626

27272829

July 1

11122

33457

910121212

1314141515

1616171718

о

-72-76+31^41-73

-51-76-81-82+ 9

+28-71- 7-45-75

- 8-64-83-81- 9

-42-60-77-66-74

- 2-46-81-12-72

-76-81-73-во-«l

- 1-20-в2-61-77

- 4-56+15-31-66

Last Seen

Long.Date from

CM.

1958

June 2826252324

26July 4

35

June 25

26July 1June 28

2829

2828

July 10117

107

14143

810151118

2120242224

1421221724

2119182228

0

+34+ 2+79-31-50

-10+82+58+74+22

+41+10+21-18-34

+ 8-50+76+70+77

+84+23+78+83-64

+66+48+58+70+68

+83+46+79+48+74

+16+74+22-28+44

+62-16+26+34+66

CorrectedMean Area

—A

22191613

121261354

2

211238

24

366022

337

155596

164

501551

3311

1561237

45517

14

3026

27

116114719

20

68789

77327

14

12559

2549

828

197498125

20832

923373

31

11730

26678

316

16857

91469

191

24353

959

30

1968

20145

MeanPosition

Long. Let.

0

357.2351.785.3

359.0327.9

339.5318.5313.1304.025.8

31.8294.4343.9305.9275.1

330.4273.1241.6224.3278.3

243.8224.9200.6201.0195.3

256.7213.0159.7221.7129.1

102.179.860.354.452.7

127.894.428.039.623.3

80.025.384 638.9

354.2

0

-11.3-16.7+ 7.2+24.8+17.4

-13.9-18.3-6.5+10.1+18.4

-15.6-10.6-24.9+15.4+26.6

-19.2+10.9+20.6+25.7+10.7

+ 4.5-4.9-22.9+27.0+16.5

+11.6+25.2+29.9-16.0-21.6

+16.5+40.2+ 8.3+20.8- 3.7

-12.8-23.5+20.9+20.4+18.9

-13.2+14.4+ 9.9+ 8.0-14.8

Reference

1817 (3)

1822 ( 1)

1819 (3)

1823 (1)

1824 ( 1)

1821 (2)

Page 87: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 19 С 271

GENERAL CATALOGUE OF SUNSPOTS

tfe.ofСгоцр

1879596979899

1880001020304

18805Об070809

1881011121314

1881516171819

1882021222324

1882526272829

1883031323334

1883536373839

U.T. ofС.М.Р.

1958

July 23. 2025.4925.7925.8322.28

23.326.2517.326.727.2

27.4121.126.829.9930.60

31.3528.3429.72

Aug. 1. 831.89

July 28. 529.64

Aug. 3. 863.531.87

July 31.4Aug. 6. 1July 30. 1Aug. 2. 5

8.06

5.206.249.169.63.6

4.710.511.5011.692.6

12.386.17.16.87.4

Dura-tion

d

51313128

212342

1344

1413

1297

1211

529

129

6533

13

59

1235

72

13• 10

3

134/5

5-3

5

First Seen

Long.Date from

CM.

1958

July 1919191920

2020212121

2123232324

2526272728

2929292930

3131

Aug. 122

33345

55556

67789

0

-49-77-80-82-25

-36-78+57-71-76

-79+30-45-86-84

-79-24-32-74-64

+11- 5-72-74-37

0-77+35+ 1-73

-23-34-76-66+24

+10-69-78-84+47

-78+17+ 3+21+26

Last Seen

Long.Date from

CM.

1958

July 2331313027

21312324.22

Aug. 2July 26

26Aug. 5

5

53277

2July 30Aig. 6

97

5434

14

7111469

116

17148

1811111013

0

+ 4+78+74+61+70

-24+68+79-30-62

+76+72- 4+84+77

+67+82+51+77+75

+67+10+32+80+74

+65-22+57+29+84

+26+68+68-43+75

+83-56+72+34+77

+82+70+59+50+76

CorrectedMean Area

... WholeU*« Spots

272159

16

4123

553

119134

4921

4033145047

172

156540

26141

75

710354

59

382

41108

1472

215

44

17364995082

13901

351816

7558423

277134

24725378

307309

838

85405203

175101810

458

3548

22711

331

26812

2574645

87610

10530

237

MeanPosition

Long. Let.

о

354.9324.6320.7320.1

7.2

353.0314.573.2

308.1302.4

299.322.4

307.7265.1257.0

247.1287.0268.7227.5226.8

284.6269.8200.7205.1227.0

246.9170.7263.9218.9145.2

183.1169.2130.7125.1203.9

189.0112.299.797.2

216.9

88.0170.5158.4162.5154.1

о

+20.4-16.6+15.9- 3.9-12.7

-18.0-14.7-17.5+ 4.2+17.8

-18.1+26.2+24.6+17.2+ 4.8

+ 5.9+19.0+12.7+26.9+14.9

+ 6.3-10.2-23.7-9.4-9.2

+ 8.7+ 7.4+20.3+21.9+20.8

+34.0+40.9-11.0-21.3+24.2

+24.1-26.6-23.5+17.1+24.2

-13.0-9.4-12.7+19.6-21.9

Reference

1822 (2)1825 ( 1)

1822 (2)

1826 ( 1)

1827 (1)

1823 (2)1828 (1)

1824 (2)1829 ( D

1830 (1)

1821 (3)

1831 (D

Page 88: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 272 ROYAL OBSERVATORY BULLETINS [NO. во

GENERAL CATALOGUE OF SUNSPOTS

First Sem Last Seen CorrectedMean Area

MeanPosition

No. ofGroup

1884041424344

1884546474849

1883051525354

1885556575859

1886061626364

1886566676869

1887071727374

1887576777879

1888081828384

U.T. ofC.M.P.

1958

Aug. 10.7910.9611.9414.2915.46

12.4616.316.413.011.7

13.414.415.018.5419.7

21.6621.6921.8918.6513.8

15.623.9923.9823.525.94

26.426.9927.6018.123.0

30.3531.5431.08

Sept. 1.0Aug. 23.0

31.58Sept. 1.7Aug. 28.0

28.53Sept. 1.84

2.703.64

Aug. 31.94Sept. 2.1

2.40

Dura-tion

d

855

119

95532

523

105

138

1462

37

1229

412826

13131142

II222

11

9893

10

Date

1958

Aug. 99999

1010101315

1515151515

1515151617

1718182020

2020212224

2425262627

2727282828

2828293030

Long,fromCM.

о

-19-25-35-58-64

-22-76-77+ 5+51

+26+16+ 9-41-54

-78-79-81-30+47

+24-70-74-38-74

-76-84-в!+56+17

-78-76-66-74+55

-59-71+ 4- 3-58

-70-80-37-32-36

Date

1958

Aug. 1613131917

1814141516

1916172419

2722282118

1924292128

2331282329

Sept. 565

Aug. 2928

Sept. 6Aug. 28

2929

Sept. 7

54618

Long,fromCM.

о

+74+34+17+60+26

+80-27-27+32+62

+79+26+31+76- 3

+74+10+83+36+64

+50+ 4+76-27+33

-40+58+ 8+68+77

+78+78+70-34+72

+80-58+18+11+73

+34+ 8+78-11+75

Urbrte

51678

18

19315

11

1123

346

457

137100

31133

123

510112

103

3837

11534

73415

22

116

773

19

«holeSpots

26131304099

13524162558

421314

19329

26036

1072328

1357

22910

133

18686113

595

228222676

1822

472268

34124

5336

47614

104

Long.

о

109.1106.893.862.947.3

87.035.834.979.696.9

74.261.253.86.6

350.8

325.3325.0322.4

5.169.4

46.1294.7294.7301.6268.8

263.2254.9246.9

11.8307.2

210.6194.9200.9189.0307.2

194.4179.4241.4234.6177.7

166.3153.9189.6174.0170.3

Let.

о

-23.5- 5.7-13.4+45.0+15.6

-25.6+15.8+ 3.5-24.7-14.6

- 8.1+ 8.6-25.4-12.2+ 9.4

-14.5+ 6.2+17.6+23.4+ 8.4

-11.3+20.4-17.7-20.0+ 8.7

+17.9+ 9.6- 7.9+26.0+21.1

-9.8+26.6- 6.8+29.4-15.9

+14.8-11.8+10.8- 4.6+27.3

-18.7+17.5-9.1-23.3+35.2

neier

1832

1833

1822

1825

1826

1827

182818291834

1835

1830

Old

(1)

(1)

(3)

(2)

(2)

(2)

(2)(2)(1)

(1)

(2)

Page 89: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHic RESULTS i9ss С 273

GENERAL CATALOGUE OF SUNSPOTS

First Seen

No. ofGroup

1888586878889

1889091929394

1889596979899

1890001020304

1890506070809

1891011121314

1891516171819

1892021222324

1892526272829

U. T. ofC.M.P.

1958

Sept. 5.626.87.27.748.70

8.759.759.723.82.9

7.9412.7614.5211.1114.6

13.4514.7714.815.0816. 63

16.5416.5612.0416.817.36

17.218.1619.5914.120.22

12.413.518.521.322.59

21.423.426.6426.9622.2

28.2924.3324.9727.828.94

Dura-tion

d

646

1113

1212943

7/8111342

8/962

8/913

131374

13

31313

213

32228

23

1313

2

13852

13

Date

1958

Sept. 11122

33356

66899

1010101010

1010111111

1112131414

1515161717

1820202022

2223232323

Long,fromCM.

о

-56-72-75-71-79

-73-82-83+18+49

-19-77-76-24-70

-41-58-58-64-78

-80-82-10-71-75

-78-76-78+ 7-75

+38+25-25-53-74

^41-36-79-85+ 2

-77- 9-22-59-77

Last Seen

Date

1958

Sept. 646

1214

14141188

1316201210

1815111822

2222171423

1324251526

1716171824

1922

Oct. 22

Sept. 23

Oct. 4Sept. 30

2724

Oct. 5

Long,fromC.M.

о

+12-32-10+64+80

+79+62+22+62+72

+75+51+76+16-56

+64.+ 9-45+45+70

+72+76+68-31+80

-47+76+76+18+82

+66+40-17-40+24

-24-15+77+73+16

+79+77+33-47+85

CorrectedMean Area

Urbre

10119

1557

85496

1226

14464962

11454

47

382994

43

386

2171

33

4004

15

23

1975

4

10134

53

33

«holeSpots

54594494

382

555254

3655

159

84313256

3812

55201216

261

2351555415

262

36464

128920

209

2718141486

1118

107394

16

584180239

170

MeanRDS i tien

Long.

0

127.8111.8106.899.787.1

86.473.273.6

152.0164.3

97.133.410.255.38.6

24.46.96.82.9

342.3

343.5343.443.0

339.5332.8

334.8321.9303.4

15.8295.0

37.623.4

317.3280.2263.7

279.4252.9210.3206.0269.2

188.4240.8232.3194.6179.9

Lat.

о

+11.7-17.7-26.0-13.8-14.5

- 8.0+18.7- 7.4+ 8.4- 8.4

+ 9.3+21.3-10.6+10.0+15.8

-21.9+12.0-24.6- 7.9-34.3

-29.6+14.0- 9.2+33.1+16.1

-11.9-15.1-17.5+13.6+22.9

+35.6-10.2+19.7+ 7.0+11.1

-18.5+14.3- 7.5- 5.0+29.8

-18.1+31.2-11.3+36.4+18.2

Reference

1832 (2)

1831 (2)

1833 (2)

1822 (4)1835 (2)

1828 (3)1834 (2)

1836 (1)

Page 90: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 274 ROYAL OBSERVATORY BULLETINS [NO. во

GENERAL CATALOGUE OF SUNSPOTS

No. ofGroup

1893031323334

1893536373839

1894041424344

1894546474849

1895051525354

1895556575859

1896061626364

1896566676869

1897071727374

U.T. ofС.М.Р.

1958

Sept. 29. б29.9829.5830.67

Oct. 1. 9

Sept.25. 328.68

Oct. 1.313.935.33

5.76.06.5

Sept. 28. 729.8

30.8Oct. 4.55

4.574.849.52

10.0110.631.35.28.0

13.014.516.4214.0117.21

17.4117.2213.6617.7220.36

12.915.217.8013.218.38

22.3916.724.2322.4225.46

Dura-tion

d

7138

104

47

11109

55225

2773

12

812264

43

127

13

1313

57/9

13

47

7/929

13 .4

12108

First Seen

Long.Date from

CM.

1958

Sept. 2323242626

2727272929

303030

Oct. 11

22333

34559

99

101111

1111121314

1515151616

1618181919

о

-83-83-69-60-72

+26-19-53-57-73

-68-73-80+34+18

+22-28-17-19-81

-85-84+53+ 2+20

-46-66-во-37-72

-76-77-12-58-80

+31+ 1-34+41-26

-76+22-77-40-el

Last Seen

Long.Date from

CM.

1958

Sept. 29Oct. 5

15

Sept.29

30Oct. 3

787

44125

3895

14

10156

1012

1211211723

2323162126

1821231724

2821292826

о

- 1+72+23+65-31

+69+63+76+60+24

-18-19-69+51+76

+36+53+68+ 8+64

+ 3+64+67+68+57

-10-40+66+47+82

+78+81+30+50+80

+73+82+76+55+81

+76+63+68+80+11

CorrectedMean Area

«-ÎS

98219269

68

6768

141120

33

413101

15

1735

5117

41

349

102

4030

43

121

392449

82

1418

13226

62478

9013852

3234

3623851

714926

3262

22765611

112

96209

227239

3110

22250

592

232189

1912

935

2421572134

584

8823363

12450

MeanPosition

Long. Lat.

о

171.5166.2171.5157.1140.9

227.5183.3148.6114.195.6

90.587.479.8

182.6168.1

155.5105.9105.6102.140.3

33.825.7

148.697.659.9

354.0335.1309.3341.1298.9

296.2298.8345.7292.1257.3

355.5325.9291.1351.2283.4

230.5305.5206.2230.2190.0

о

- 5.9-10.6-22.5+ 7.9-14.6

+13.6-10.6+28.9-14.4- 8.8

-15.3+18.1+21.2+ 5.4+ 2.3

-12.0+11.6- 5.4-14.7+16.4

+21.6+13.2-12.1+ 9.0-14.9

+ 6.0+19.4-14.7-10.2-29.0

+25.0-18.7-23.8+13.4- 3.8

-13.1- 8.6- 3.6+33.8+20.1

- 9.4-25.9- 6.8-14.0+17.8

Reference

1837 (1)

1831 (3)

1838 ( 1)

1835 (3)

1834 (3)

Page 91: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGKAPHIC RESULTS 1958 С 275

GENERAL CATALOGUE OF SUNSPOTS

No. ofGroup

1897576777879

1898081828384

1898586878889

1899091929394

1899596979899

1900001020304

1900506070809

1901011121314

1901516171819

U. T. ofC.M.P.

1958

Oct. 26.1226.718.723.0123.1

27.629.2129.425.9630.53

27.0Nov. 1. 29

2.18Oct. 25.4

26.4

28.61Nov. 2. 2

2.53.43.32

3.433.58

Oct. 30.05Nov. 4. 29

5.06

3.7Oct. 31.8Nov. 2.06Oct. 30.8Nov. 2.97

6.69.695.05.76.6

7.6514.1314.015.313.3

15.9910.217.717.813.0

Dura-tion

d

122373

41074

13

2111245

2/3245

13

137/8

27/9

7

23238

3823

4/5

29643

72536

First Seen

Long.Date from

CM.

1958

Oct. 2020212123

2323232424

2527272828

2828282828

2828292930

31Nov. 1

122

33777

7889

10

1012121213

о

-70-80+36-20+ 4

-53-75-76-20-79

-21-60-75+40+27

- 2-62-66-76-77

-79-81- 9-77-72

-42+ 8- 8+31-10

-44-78+31+24+ 8

- 4-73-75-79-39

-75+30-69-71+ 3

Last Seen

Long.Date from

CM.

1958

Oct.

Nov.Oct.

Nov.

Oct.Nov.

Oct.Nov.

Oct.

Nov.

Oct.Nov.

3121232725

261

2927

5

2667

311

302931

19

94

3065

13249

51089

11

816131212

1613161418

0

+67-70+65+57+30

-15+41- 3+17+76

- 8+65+70+78+78

+23-50-28-30+80

+77+10+ 4+26+ 2

-31+37+ 3+60+76

-15+ 6+46+48+70

+12+28- 7-37- 9

+ 8+42-17-42+79

CorrectedMean Area

«»SÄ

213

1168

715101454

515324318

154

1865

129234

16

8649

47

9142

1411

011713

1510388

11711504121

30835180

403

44100185305120

7181490

455

76112142291

34311445

316

37109

97292

456341416

8764184533

MeanPosition

Long. Lat.

0

181.4173.8279.4222.4220.7

162.3140.6138.4183.5123.1

170.4100.088.3

190.6177.2

148.688.684.072.573.2

71.869.8

129.560.450.3

68.8107.189.8

119.677.9

29.9349.250.642.030.4

16.1290.7292.2274.6302.1

266.2341.9243.7242.0306.1

о

-19.7- 7.4-9.3+14.4-0.5

-32.0-15.7+29.9+ 6.8-13.7

-6.2+37.1-11.0+ 7.5-4.5

-14.4-35.8+15.0+42.4+ 8.0

-16.1- 6.8-19.4-15.5+15.5

+19.8+11.0+11.0+12.0+38.4

+10.1+34.2+23.1+15.2+10.8

-9.6-29.8+20.2+24.9-19.1

- 2.9+12.7-9.3-14.1-9.1

Reference

1836 (2)

1837 (2)

1839 (1)

1840 ( 1)

1841 ( 1)

1838 (2)

1842 ( 1)

Page 92: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 276 ROYAL OBSERVATORY BULLETINS [NO.

GENERAL CATALOGUE OF SUNSPOTS

No.ofGroup

1902021222324

1902526272829

1903031323334

1903536373839

1904041424344

19045No group

474849

1905051525354

1905556575859

1906061626364

U.T. of Eüra-C.M.P. tion

1958

Nov. 10.518.018.3921.0915.4

17.8219.1922.324.6222.05

25.1423.6725.526.126.86

27.9826.3529.2429.2329.71

30.6029.1330.2

Dec. 1. 4Nov. 26. 90

Dec. 2.05number 19046Nov. 29.71Dec. 3.8

4.04

Nov. 27.7Dec. 2. 80

6.404.315.37

8.18.39.665.399.65

11.1712.0312.1012.399.46

d227

124

522

117

1110

5/62

13

12976

10

149373

11

74

10

38

13109

36

138S

12131388

First Seen

Long.Date from

CM.

1958Nov. 14

14151516

1618181819

1920202020

2224242424

2425252526

27

282828

303030

Dec. 12

22344

56668

0

+52-47-36-76+14

-18- 7-49-78-36

-75-42-67-75-81

-79-25-63^66-72

-79-52-66-78- 8

155

-18-70-75

+38-28-75-37-39

-73-75-79-15-68

-77-72-74-78-12

Last Seen

Long.Date from

CM.

1958Nov. 15

15212619

2019192825

29292521

Dec. 2

32

Nov. 3029

Dec. 3

73

Nov. 27Dec. 1Nov. 28

Dec. 7

417

27

121010

47

151111

1618181315

о

+66-34+35+71+54

+36+ 1-38+51+43

+53+72- 2-62+73

+74+76+16+ 4+50

+81+56-37- 2+22

+72

+65-31+44

+63+61+77+77+74

-46-13+78+78+25

+71+82+82+11+75

CorrectedMean Area

... «hole""b"* Spots

82

1620

4

300

4016

2790

10

11

39120

181019

15934

210

2

20

198

32

423417713

612719912

32112868

11

252468

11231

3264

253113

129606

141463

251685107

53102

1123208

85214

132

12640

221

26130261489

58

2169

50758760

168710675

5369

MeanPosition

Long. Let.

о

338.6239.2234.6199.0274.5

242.1224.0183.2152.4186.3

145.6164.9140.6132.5122.9

108.1129.691.591.685.3

73.693.078.363.3

122.4

54.5

85.331.028.2

111.344.6

357.224.810.8

335.4332.4314.2

10.5314.3

294.3283.0282.0278.2316.9

0

+ 5.8-6.8+21.1+ 6.2+15.4

- 5.1-10.9+16.0-12.2-4.4

+17.1-10.0-14.2+ 8.0-25.3

-14.4+20.0+34.2+11.3-15.6

-16.0+15.7+ 4.5+40.3+28.5

+14.5

+ 6.7+18.2- 8.4

+12.4+11.3-20.8+ 8.2+ 3.4

+12.9-12.9+14.1- 6.5-8.5

- 2.8- 1.3- 6.7+ 9.8-13.6

Reference

1839 (2)

1840 (2)

1841 (2)

1843 ( D

1844 (1)

1842 (2)

1845 (1)

Page 93: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958

GENERAL CATALOGUE OF SUNSPOTS

С 277

No. ofGroup

1906566676869

1907071727374

1907576777879

1908081828384

1908586878889

1909091929394

1909596

U. T. ofC.M.P.

1958-59

Dec. 11.5813.439.56

11.2615.07

13.315.1617.2018.919.70

15.521.5723.3424.7315.5

24.8427.0522.3727.8928.52

25.5828.8829.1329.8430.67

Jan. 1. 10Dec. 24.2

26.226.9

Jen. 3.97

4.04.05

Dura-tion

d

510

26

10

410132

5/8

27

1382

10/11148

1413

6/778

1313

13223

12

58

First Seen

Long.Date from

CM.

1958

Dec. 88999

1010111414

1717171820

2020212122

2323232324

2628303030

3031

0

-41-65- 1-28-73

-39-64-74n60-70

+28-53-72-81+64

-62-84-13-81-79

-26-70-72-76-77

-77+55+55+47-57

^61-49

Last Seen

Long.Date from

C.M.

1958-59Dec.

Jan.Dec.Jan.Jan.

Dec.

Jan.

Dec.

Jan.

1217101418

1319231521

1823292521

302

2833

292930

45

72931

110

37

0

+11+53+10+44+43

0+56+78^48+21

+39+28+78+ 6+79

+78+83+76+82+75

+51+ 7+18+78+74

+82+68+69+74+77

-9+44

CorrectedMean Area

««5Ä

127446

18

10167163

4324514

2

133814

13848

116

132841

3322

2616

520

61499

2630

123

7881

4892419

221912297915

8721195

1018334

823888

174221

1681818

15092

25120

MeanPosition

Long. Lat.

о

288.9264.6315.6293.1242.9

265.7241.8214.9192.3182.0

237.0157.4134.0115.7237.0

114.285.1

146.874.165.8

104. 561.057.748.437.5

18.6122.896.687.7

340.8

340.3339.8

о

-29.9-18.6-19.0+27.2+ 9.8

-14.5+ 6.7+21.7+15.2+17.0

-19.9-15.9+19.1-22.7-17.1

+13.0-19.1+ 9.0-16.0+13.2

+10.0-21.9+13.8+18.8+ 7.3

-4.3+ 8.9+10.6+18.1+21.2

-18.7-14.5

Reference

1846 ( 1)

1847 ( 1)

1844 (2)

1840 (3)

1843 (2)

1848 (1)

Page 94: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 278 ROYAL OBSERVATORY BULLETINS [NO. во

GENERAL CATALOGUE OF SUNSPOTS

SUNSPOTS SEEN ON ONE DAY ONLY

The groups of sunspots tabulated below were seen on one day only and appear in the DailyResulta with a distinctive numeration, comprising the number of the rotation during which eachwas observed and a letter given in order of appearance. These short-lived groups are usuallycomposed of one or two very small spots. The deduced time of central meridian passage of eachspot is given in the fourth column of the table.

Numberof

GroupDate

Longitudefrom

CentralMeridian

U.T. ofCentralMeridian

AreaCorrected

forFore-

shortening

Uibra WholeSpots

Positionof Group

Longi-tude

Lati-tude

1395Jk1mnо

1958

Jan

1958

79

10101112

-52.4-10.2+12.2-51.6+ 1.9•43.9

Jan. 11.410.29.4

14.211.315.7

011541

573

11165

19.936.047.4

343.622.4

323.4

+11.8+ 3.4-11.3-15.0+11.8-20.5

1396abcdef6hijk1mn0

PЧrstu

Jan. 13141818182022222Ъ2829

Feb. 1233355777

-71.1-6.6+57.5+54.4-37.2+46.4+52.6-19.5+32.4+66.3+22.9+ 5.0+65.9+ 5.1- 6.2-12.0+ 6.6- 2.4- 2.0-42.3-59.6

Jan. 18.915. J14.014.221.217.018.423.920.923.427.5

Feb. 1.1Jan. 28.4Feb. 3.2

4. i4.55.15.87.4

10.511.8

042000851021725213322

321221933

151365

154

38151112

519148

13

282.1332.2346.1343.0251.4306.2288.3216.2254.8222.5168.0107.6156.880.469.163.355.646.624.4

344.1326.8

-23.5-16.1-12.3-17.8+22.3+18.8+14.4-8.3-23.8-13.9-13.6+ 5.5-17.1+11.7-19.9+ 7.3+19.6+11.5-14.1+18.8-14.5

1397aЬсdef

6hi

jk

1398ab

Feb. 910161825272727

Mar. 156

Mar. 1415

+67.0-3.0+ 8.3-37.0+28.9+28.5-34.1-62.2+28.9-11.0+70.1

-31.2-15.8

Feb. 4.10.

46

16.0

Mar.

Feb.Mar.

Mar.

21.23.25.2.4.

27.6.1.

16.16.

41412433

97

62111120126

33

4588795

1222

1432

1715

64.342.272.200.178.148.86.57.

122.30.96.

251.253.

45023609374

62

+ 6.+16.+ 7.-14.+22.+11.-3.-15.-14.-16.- 5.

+18.+ 5.

41015882753

27

Page 95: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 279

GENERAL CATALOGUE OF SUNSPOTS

SUNSPOTS SEEN ON ONE DAY ONLY

Nunberof

GroupDate

Longitudefrom

CentralMeridian

U.T. ofCentralNbridianPassage

AreaCorrected

forFore-

shortening

1399abсdef6hi

ik1mn0

PЧrstuvwx

УzaßY6eÇn

1400abcde/g

Apr. 569

11131313131414161921212223232323242426262626262727293030

May 11

May 44599

1112

+49.4+ 1.5-57.7+54.3+36.4+ 1.7+ 1.4- 6.1+ 3.0- 8.5+78.8+19.2+72.0+ 2.2-22.1+52.9+31.9-9.1-58.9+66.9+20.3+76.2+17.4+15.3-35.6-57.0+ 6.4-14.4- 4.3+78.1+ 7.0+18.2-35.8

+12.0•42.8+58.7+13.0-48.7-29.8457. 3

Apr*

May

Apr.

Apr.May

May

1.96.3

13.87.4

10.813.413.514.014.415.310.418.115.921.124.119.421.024.127.819.322.820.925.325.529.41.0

27.128.629.724.429.829.94.0

3.77.81.18.3

13.013.817.4

1398cdefáhij

1958Mar. 16

17212931

Apr. 222

0

•tfl.3+69.0+55.5+42.6-41.6+59.0-36.0-67.8

1958Маг.

Apr.Mar.Apr.

21.112.117.226.23.5

28.95.17.5

30232273

19153

1022152913

о

195.3313.6247.6127.9

19.293.0

358.9326.?

222

1021110060040031004411101100111

0226232

14137

3420157445

5556

228

10755

11134511

857344

251286

111830249

1617

Positionof Group

Longi-tude

о

195.3313.6247.6127.9

19.293.0

358. 9326.?

40.5342.7243.5327.9282.4247.7247.4239.9235.2223.7287.9186.0215.9146.1107.5169.5148.5107.557.7

170.2123.6149.490.688.537.616.267.746.933.6

103.031.929.9

335-9

340.7285.9

14.3278.7217.0206.5159.0

Lati-tude

0

+38.8+16.7-15.4+18.1-25.8+20.5+27.6+ 9.7

-10.5+21.2+ 9.9+29.3+40.4+11.7+ 5.7+ 9.0+15.9+ 2.9+13.2-16.9-15.1+12.4+12.6+22.4+11.7- 9.7-9.0+27.1-9.7+ 9.1-28.8-10.5+25.1-22.0+ 9.7+11.9-22.8-25.9-24.0+10.8+16.0

-10.4+23.7+11.6+29.9+10.0+12.5-25.9

Page 96: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 280 ROYAL OBSERVATORY BULLETINS [NO. 60

GENERAL CATALOGUE OF SUNSPOTS

SUNSPOTS SEEN ON ONE DAY ONLY

Nimberof

GroupDate

Longitudefrom

CentralMeridian

1400hijk1mn0

PЧrsí

1958May 18

181921212225262626282829

o

+64.0-49.2-16.0- 8.3-33.5- 1.8-41.5+ 2.5-17.6-33.3+21.0-18.1-70.1

'.abcdef6hijk1mnoPqrstu

May 303131

June 133345779

101112131417182324

-22.3-53.9-76.6^23.1+ 0.3-36.8-67.6+51.7

0.0+29.2-70.8+60.6+69.3+14.4-68.4-14.0-23.0+52.8-17.8+38.1-35.0

U.T. ofCentralMsridianPassage

AreaCorrected

forFore-

shortening

1958May

June

June

№yJune

13.722.320.822.023.922.628.726.428.029.226.729.73.4

1.14.46.13.43.56.38.6

31.85.35.4

12.94.75.2

10.317.714.416.313.419.720.526.9

Uribrce

0210301030200

000117001002410132011

WholeSpots

1011173

154

109

153

153б

44

3395

278

181348

181313б5

2116338

1402aЬсdefÉhi

ik1m

June 262627282929

July 1224б77

- 7.4-46.5+63.7- 8.5-6.9-41.3+61.9+29.1-4.5+12.0+ 2.7-6.9-56.5

June 26.929.822.529.030.1

July 2.7June 26.7

30.2July 2.7

3.46.18.0

11.7

0422002211210

5165

1059

161354577

343.3304.2

40.9315.0300.9266.5346.2299.7266.1256.7220.7196.4146.8

+26.5+20.8+22.4+ 4.0-6.9+23.2-26.1+16.0+24.5-15.5+20.7+21.0+25.6

Positionof Group

Longi-tude

о

207.594.3

113.798.072.890.39.3

39.319.23.5

35.2356.1294.2

324.9280.8258.1294.2293.3256.2225.4329.0268.9268.1168.1276.3270.2203.1105.2148.7123.4162.078.767.7

342.4

343.3304.2

40.9315.0300.9266.5346.2299.7266.1256.7220.7196.4146.8

Lati-tude

о

-7.9+ 9.0+22.4-17.3+17.2-13.9+16.3+24.1-28.0-14.5+25.9+16.7-14.5

+23.6- 5.3+20.4+27.3-15.4+16.7-15.4-56.6+ 9.7+10.1+12.2+20.7+39.8+35.6+29.9+18.2-24.9+22.3+ 7.5+24.5-25.9

+26.5+20.8+22.4+ 4.0-6.9+23.2-26.1+16.0+24.5-15.5+20.7+21.0+25.6

Page 97: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOQRAPHIC RESULTS 1958

GENERAL CATALOGUE OF SUNSPOTS

С 281

SUNSPOTS SEEN ON ONE DAY ONLY

Nunfcerof

GroupDate

1958

Longitudefrom

CentralMsridian

U.T. ofCentralMeridianPassage

AreaCorrected

forFore-

shortening

1958

1402nоPЧгstиvvX

July 810101012121214151620

+ 3.5+60.4+53.8+19.5+24.4+ 9.7-54.0+ 3.3+24.4-Í4.3- 8.3

July 8.25.76.28.810.811.916.714.113.521.421.3

Unbne

00003121023

«holeSpots

57б7195475812

1403a

bcdef

6hijk1m

July 2529293031

Aug. 113

1415151616

-22.5+66.2•50.5- 3.9+44.0+ 3.7-27.8- 2.2- 1.5+42.8-0.1+21.2- 2.7

July 27. 124.431.730.628.0

Aug. 1.43.8З.б

14.412.415.614.816.6

191141

11

11101

27399

1218

57856688

303.1339.6242.9256.4291.7233.6202.1204.060.888.045.156.732.8

+ 3.9-6.0+10.2+10.3-21.8-6.7-27.3+26.4-16.9+ 7.6-12.1+12.3+21.0

1404abcdef6hijk1m

Aug. 202023232525252730

Sept. 88

1113

+14.9-57.8+41.8-17.4+74.4+ 0.9^43.9-'7.8+46.3+41.1-75.4-27.8+21.7

Aug. 19.525.020.224.620.025.528.927.927.1

Sept. 5.214.113.511.9

1015

1510441013

10.79

27103

54

26149

139

20

353.7281.0345.2286.0347.7274.2229.4242.6253.7132.9

16.423.944.4

-33.4+27.3+22.9+ 9.2-31.1-19.6-10.4+13.1+ 6.1+12.2+10.7- 8.3+18.0

1405abcdef

6h

Sept. 1718192223262930

+ 5.2+25.6-16.3^45.8- 6.2+36.6+19.5+24.5

Sept. 16. 916.420.825.823.823.728.128.6

12100201

717986

123

10

338.4345.5287.6221.1247.7249.4190.8184.0

-8.5+28.8-23.6+25.6+15.5+15.3+13.5+22.7

Positionof Group

Longi-tude

о

193.7226.0219.4185.1159.4144.781.0

115.9123.618.620.7

303.1339.6242.9256.4291.7233.6202.1204.060.888.045.156.732.8

353.7281.0345.2286.0347.7274.2229.4242.6253.7132.9

16.423.944.4

338.4345.5287.6221.1247.7249.4190.8184.0

Lati-tude

0

+16.6-12.7- 7.8+31.0- 9.3-11.1+11.1- 8.6-13.8+ 5.1+ 5.6

+ 3.9-6.0+10.2+10.3-21.8-6.7-27.3+26.4-16.9+ 7.6-12.1+12.3+21.0

-33.4+27.3+22.9+ 9.2-31.1-19.6-10.4+13.1+ 6.1+12.2+10.7- 8.3+18.0

-8.5+28.8-23.6+25.6+15.5+15.3+13.5+22.7

Page 98: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 282 ROYAL OBSERVATORY BULLETINS [NO. 60

GENERAL CATALOGUE OF SUNSPOTS

SUNSPOTS SEEN ON ONE DAY ONLY

NLirioerof

GroupDate

Longitudefrom

CentralMeridian

U.T. ofCentralMeridian

AreaCorrected

forFore-

shortening

UifareWholeSpots

1405ÍJklmnoP

1958

Oct. ll2678

1212

+•26.5«6.2-16.4+14.1+20.8+39.5-10.8-72.4

1958Sept .29.3

29.3Oct. 3.8

5.35.85.5

13.217.9

1159

1245

1125

1406abсdefíhijk1m

Oct. 16171717182121242531

Nov. 588

- 8.6+47.5+39.1+11.3-3.6+12.4-68.6+68.9-14.0- 1.8-55.5-51.1-63.2

Oct. 17.013.814.416.518.720.526.719.126.431.5

Nov. 9.512.413.3

1710015021262

5376448

121521

514118

301.4344.1335.7307.9279.5254.9173.7273.4177.5110.4351.7314.1302.0

-12.5+22.7+14.2+19.0+ 9.6+ 7.4+ 2.6+25.2+23.2-20.5+20.7-11.7-8.9

14076bсdef6hijk1mno

PЧrstuvwxyt

Nov. 11121213131415151616161818181919202020

Dec. 1223445

+ 5.9+67.2+36.1+39.0- 5.7+55.9+15.6-21.2+61.2-29.2-32.449. 8+ 7.7-30.0+58.0-20.3+ 1.5-3.9-18.6-22.2+34.1-46.8-14.9+ 9.5-20.2+48.9

Nov. 11.17.49.8

10.513.910.314.217.011.818.6

18.915.618.020.915.020.920.320.721.8

Dec. 3.1Nov. 30.0Dec. 6. 1

4.43.86.01.9

20131012810320000710522022

11188

1159

131023

52

10144424

3974

195

177

197

330.919.0

347.9338.8294.1341.2289.5252.7321.8231.4228.2271.7239.6201.9279.4201.1209.2203.8189.140.381.40.5

23.431.82.1

56.8

+14.2-10.0-11.1-4.1-18.8+28.6+26.8+16.4-12.9-14.4

-9.2- 0.6-10.5+14.4- 2.9+18.7-12.2+21.6-10.6-14.4+34.1-13.7+14.7+17.3-13.8+17.5

Page 99: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 с 283

GENERAL CATALOGUE OF SUNS POT S

SUNSPOTS SEEN ON ONE DAY ONLY

Nunberof

GroupDate

Longitudefrom

CentralMeridian

U.T. ofCentralMeridianPassage

AreaCorrected

forFore-

shortening

1408aЬсdefâhij

1958Dec. 6

161619212224242727

o

-66.2+22.6- 1.8+19.5-35.9-29.7-0.1-55.1+22.9+ 6.7

1958Dec. 11.6

14.716.517.924.224.724.628.825.827.0

3110134441

911874

173315247

о

289.2248.4224.0205.3123.0116.0117.562.5

101.885.6

0

+19.6-11.7-6.5+11.4+21.9+25.1+ 7.5+16.8+24.8-10.2

Page 100: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

Blank page retained for pagination

Page 101: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

TOTAL AREAS OF SUNSPOTS AND FACULTE

Projected and Corrected for Foreshortening for each day

The place where the photograph was taken is indicated in the second column. A photograph

taken at Herstmonceux is indicated by the letter H, and those taken at the Cape, Kodaikanal,

and Mt. Wilson by the letters C, K, and Mt.W respectively.

The projected area is the area as it is measured on the photograph, uncorrected for

foreshortening and expressed in millionths of the Sun's apparent disk.

The area corrected for foreshortening is expressed in millionths of the Sun's visible

hemisphere.

The areas of faculee are given separately for the Sun's western and eastern hemispheres.

Page 102: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 286 ROYAL OBSERVATORY BULLETINS [NO. бо

TOTAL AREAS OF SUNSPOTS AND FACULÄ FOR EACH DAY IN THE YEAR 1958

Projected Area Corrected AreaDatetnd

Place Ihix «hole$x>ts

FaculœWest East

IMx WholeSpots

FaculteWest East

J A N U A R Y

123456789

10U1213141516171819202122232425262728293031

HСHСdсHHHcHHHHcccHcHHHHHcccccHc

587713764555532524588639609650757903

10541217893

1065916830798783681681488469407541615469415307405

3771423639863814357136103454403241514702446554386317792858876688520442674604417036013544283227782626303131952991253518081828

941805

104912531181846873393843

109713571084799843826533836709971

12861437586771

1204100312201255857840916639

127512431134657950

1117906580

10361192138817051026908961888

1672608741994724575945944742409887

1076987894367

485554552420488412398411395448623677709826582704745603580573532536453339315435397287256185293

3106332929083028355929542297254327523234345340954295539539694728425232913564309427592875247720682118280420391808151110921426

1331112513991328146513381172496

1260126915661613928943

1010717

1023970

124815591762766

11291381120015441712117110821046761

1637138611561005133312421044839

149416051667220511081163122112462246871873

1277839653

11581035966552

121012931220991631

FEBRUARY

123456789

101112

13141516171819202122232425262728

HcHcHcccHHHHcHcHHHHHccHccHHH

346486549700908744967909913835818915854741597586575437370414423487572570699574332231

1596249429693809465546805216525453744694436149864296392333563062282826732217215122412839331633463827351522331781

1119682

1095589738

118714171018705802

141015051355835644534938458326556654764827531879949975603

80212701128872901923

1584797586619802

10291008726665894

1145556904687581

1113774

109212611177998428

280458450515613487674592573540551624595579412473525434350250236308358365483450273236

1456226524562822307630783455333033413057303333483035315623962559256227822227131612561811213822552696270619251768

1364820

1600751

1001160317701322872924

1717148715241018958599

1187695589647798938

1101616

103111981251831

1155166712511110990

108519681003651783969

12721318854772

12751391577

1029809710

146711071594155213621099579

Projected Area Corrected AreaDateand

Place Uifa. «holeSpots

FacultéWest East

Ufa. «holeSpots

Faculee«fest East

MARCH

123456789

10111213141516171819202122232425262728293031

СHHHHHHHHHHHHHHHHHHHHHHHHсHHHсс

260453509794982982

10531141937701688597573698676584487461563934836934

106211841409131713411608148918661809

19912709370847626130642671045745551241794079386534704264408738424009356639584737550253146051648874778733840097139910

1089611471

9961019

5371041759638

1078748572605

12102068935

1045495

1210807784365232563

1008784442810785687

1165699419914

690581955744957583

1045704957517770858814913737

14521448851840563254796928874

1221622178677910

11731139

383493446548631699793811666540570528479504460441407417425657580780887

10211109934964

1145111013121244

2973302632553293387347045591402838563200334535442961305328012818328937043049326638964311549460055913625062186809724177538046

12251291655

12069Ю874

14l;967692614

1408233614561615696

1511867

1101722237604

11641196704887887691

1392931590

1223

894792

1130860

1161830

1315925

1245615976

1223981

11961004175117291089954630388

1273122310461362591315939

138615551415

A P R I L

123456789

101112131415161718192021222324252627282930

HHHсHссHсHHHHHHHсHHHHHHHHHHHHH

1715150513661169141213071065818887690515345217139155231372480578779828752769529609674683972

11441138

10639845273367567738477586077507851134261308918831365840980

168924323198403945924823535347153516390140584214579970157185

14501203992507479561954937

1139817885Oil

15341439846663

10241125866315711429996690

14691662587463937

1702

12371161891691970270663857771639671

1504672822573

132811981046112810681594791

1142486881972

1029133413451305

11241008990907

1043917775678610492361274223160209229290341361473565510570393527641504730816706

715559395710593656295438446440813625344121831515148110601546165719662268248728573287347434482680354437963327448750524565

153615131340751519603

109712101601112410941021167416221255981

105814711212472914498

1119101416762082953628

10302066

141315201077866

1068248987

1152982687698835907

1176803

159713841174156813922120846

1348599

122714651267149014911328

Page 103: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 287

TOTAL AREAS OF SUNSPOTS AND FACULTE FOR EACH DAY IN THE YEAR 1958

Date

Place Uib.

MAY

Projected Area Corrected Area Projected Area Corrected Area

Whole FaculeSpots *st East

Uib. flhole FaculeSpots Vfest East

123456789

10111213141516171819202122232425262728293031

HHHHHMt.W

HHHсHHHHHHсHHHHHHHHHHHKHH

13461316145011161026717749544475458468462339333373394448489588575527530541551496416429417339616596

7915706877597069627042673925305725943036302227122455206621132319239630863386319531262852285329992890255425022599220034773088

1521715250625

10211240163410221260475885

1119.935877

1084536508661913639

1003627763

1481164011791111974789526675

578568830771431114737318489630637959855

1038130010041062695

1209388

14021197117413341665104212021248830

10641270

925888924790742547640435356350373405311284275276325336415424418370394486363304343313264419392

5450473650734887470332243539294622292566245023852328166715641645183321762414243925572019239826712214183219821917169323552050

1872990437704

12141648213513811762661

11051411131910461415817704824

1022938

1629803829

182621251574138612821064648892

727680

1043944595144952548719753753

111312221196147812391517825

1360496

18391692159117061932123415871649123614371407

JUNE

123456789

1011121314151617.18192021222324252627282930

HсHHHHHHHHHсHHHHHHсHHHHHHHссHс

59255046565671169868297692571466649155342436530134435140036242?391348404508570516555548426

33083162293741234815513553316241578951944623ЗЮб314226332172189520462208268823752405241522222903346238123323314829922600

1065610

11451111

.1169778686

115711111088668614

1404219711391495624440223681

1293738484520393670649492994873

1329765469893

16491419905802665629954813

1139726806645879786357

1375154816301283110811201074997651431650

391347361641688581514678602496426408482394330204233212247260314298385367376383309371359300

222119832406445248704360392943403801360829622464274224262002134814981339166817131769182122772622255825652031205222101972

1271676

1427142717051209949

138813881473897725

1461244514802073883689220814

1574914571691577825850650

11001106

1493792729

1212208415351081894855848

140910171364978861864

10761063

53519931869198814741576120413831153759952938

Dateara

Place Uib. WholeSpots

FaculeWest East

Uib. flholeSpots

FaculeWest East

JULY

1234567В9

10111213141516171819202122232425262728293031

сHHHссHHHHHHкHHHHHHHHHHHHHссHHH

466550705769759817815726736786554352344442593666793770890724731678518648800806

10201020936949

1168

2762342940784513603249544646453541984381372623992078221830903898452842934826432841403748352343124407477463556946608164237158

549764

10821023538269632921

1005221714091229684

1466543873601358462704693641528460414599814881461957

1316

930901

126410681043594828598728728624702815

1063820

1345820751600913

20111718632391978760

13041439104710591099

36245754156247051653948252858645640038535440839144843867655067061145650158251863062S724768963

2246290931803430374130883130303629953242304226892195185521292270252424513677341341553488321334173201312739714274467651216015

641959

13001326989337768951

1161278916771516861

2014720

1066850522452823

1087813647765412747

.11041135746

10271699

11771151165913381226657

1004779853884771932

11891394983

1612977879741

134027742067793557

1347890

16351887137813151339

AUGUST

123456789

10111213141516171819202122232425262728293031

HHсHсHHссHHHHсHHHHH-HHHссHHHHсHс

1057793666523380725640648899

1051831738604687513650502504428548611543514437626593503441515909785

6471504342442646259938463774477950735386483342683818395431613445276630833139357441614001404435063627334832012613333852025000

14201121822

1306501

11351179111111881190604821308

1166617844763

1299570638319399663740969821

17111140506306541

790699621

1224577767755

10891066836421707366699387900946

14011004468730

1060117111271481174317671208803692972

664510464384320547522477679696574492437476480695526471277320370358327290457489504378373497421

4171339930642008227732123134346039103709329429102807275129793817293729012034206725442440250224302613277333222408248028412679

1872151911161467606

15381530131816781446804

1117387

1455769

108910701827768884505391745

1090986850

19981385746383699

1005918805

1513712961

112312881445997560874517854766

1284107119691189

575115613221532170221112007200615571005858

1043

Page 104: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 288 ROYAL OBSERVATORY BULLETINS [NO. во

TOTAL AREAS OF SUNSPOTS AND FACULA FOR EACH DAY IN THE YEAR 1958

Dateeri

Place

Projected Area

... Wr>le Faculx"*' Spots Vlfest East

Corrected Area

lu, Whole Pbcul*"*• Spots »fest East

Projected Area Corrected Area

SEPTEMBER

123456789

101112131415161718192021222324252627282930

HHHHHHHHHHHHHHHHHHHHHHHHHHHHMt.WH

8921010941812662428400473584699793786809880947

10281103984833700700800614685698739886857972738

51976061570145963857268726413004Э487380245264751490053334963613563415953463740054076420538103674402542014233464141024305

682761749

123717481772897938564599406

102810561408360710664

15631126427963

1226820574933907303683871836

5231024195313161204795681

1051983

1029110712771384990866

11481001495247270560

1159911799

1271615819448685

1918

497648721711616366295334347460608697830773686662679599507488549720558645614489542501568461

290340234564402637642399215421182059260735274298505047733627401639303592280928013128398235893305375029432619276324032696

8231016937

15342104260113571176762771431

104312302115617777724

17621245697

10991593972614

13271337356763

1064957

6951472257216361208106910091315129512841756162516061133109311861034627325317767

1617130810201554694924612782

2316

OCTOBER

123456789

10111213141516171819202122232425262728293031

HHHHHHHHHсHHсHHHHHсHHсHHHксHHсH

755547514417309227275206222163287388463534514809

1012933982943955814783526521400344475516390547

4176362529512625185314211475121112B81140181224002869289435614639656770757284662159895161453231983084200522142836326231433768

728848725

11941483613401278

12431211699533312545600477712751839

1436164513801502617397686373704704905792

1287512502748

10591138691455688961

1810173212361132689588754573559673

1359856673485509

1093480

139714631663792

510415397421318191239130132105391400388428366560722624608601617554537367367332331494418293396

2795269824032760207711711247758774764

249924512443245727693192458046924459417137443353326023332236166621012964261224422638

7651024835

15381918836699343

14211615945677427613778648766809

10401777181416242308968456862467

1114722908

1115

1487579923

108214421302819647895

12972358213413851293940698

1003654731

10451680936932591633

1603586

207817831918923

Date

Place..v flhole Facul*

Spots 'fest EastUib. Wiole

SpotsFacul*

Vest East

NOVEMBER

1 H2 С3 H4 С5 С6 С7 H8 H9 H

10 H11 H12 H13 H14 H15 H16 H17 С18 H19 H20 H21 H22 С23 С24 С25 С26 С27 С28 H29 С30 H

69090378680359844338120288868288815980

120111155193193285426379523612865

1023999807

1310

46145142390447963970315420211463617514561525430411388570500817968

12451529246327283263406349306231560552497429

902596616297

1060689

1436975

1007946770405

541106724713190

1269888

12201002420714346409725315709777

1353

1078990451667752541329845

1599167220871478699

1053503

1161307514679

11001155315598841

12491207745

1144629770

4075064664953943253662781488177655836728573

132196166196249224363468575653704546824

274529052358312626152303194420791095503569420290255322413326860981

10631024144616742351307732904021388936404753

1306683703338

1277950

1610128414931080982631

45119510221193

1771473107914321215453953551438881443781857

1442

12321102730

1081899613499

11502087197122421825916

1225761

1459310698933

13631264

444934

124516381543921

1396731804

DECEMBER

1 H2 H3 c

4 H5 H6 H7 С8 H9 H

10 H11 H12 С13 С14 H15 С16 H17 H18 H19 H20 H21 С22 H23 H24 H25 С26 С27 H28 С29 H30 H31 С

912834719782900885951

10251095984

10901120912919731413397336308237256336483522577820687704558433445

6379594452394595624255945991638973696303719375175706596239553599277022172077164116282318350439633541515846394009372726852995

3811167535

10091482575640510

1058569509230345

1057972814

135311221159757628270283575324449518686

1221572488

3371122819867927705

11971063555755977

84690808773473858681706

10791452970992

1323878867496676440280821

620555477545664700726745766663614642531576469314398264224175255407441428413551438450357280310

4345388035153395465050274533452151724203412142933306365425572661274517491466125420563083335030702532338928752554236017632107

5201512670

11411691832954641

1219687797349371

10821264942

1787157414571067791334375707509444733949

1399824618

363153310891057955

109515241197640822

1077100864953919614

1072869952

127618271421124415661085981644808580331

1146

Page 105: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

MEAN AREAS AND MEAN HELIOGRAPHIC LATITUDE OF SUNSPOTS AND FACUUE

for each rotation of the Sun and for the year

Page 106: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 290 ROYAL OBSERVATORY BULLETINS [NO. 60

MEAN AREAS OF SUNSPOTS AND FACUUE FOR EACH ROTATION OF THE SUN,

FROM 1958 JANUARY 13 TO 1959 JANUARY 2

The mean areas have been formed by taking the means of the areas for each day of observa-tion throughout each rotation of the Sun, the projected areas being the areas as measured onthe photographs and expressed in millionths of the Sun's apparent disk, and the areas correctedfor foreshortening being expressed in millionths of the Sun's visible hemisphere.

The rotations adopted in the following table (which is in continuation of those for theyears 1873-1957; see R.O. Bullet in No. 26, page С 182, 1961) correspond to the synodic rotationof the Sun, and the commencement of each is defined by the coincidence of the assumed primemeridian with the central meridian, the assumed prime meridian being that meridian which passedthrough the ascending node of the Sun's equator on the ecliptic at mean noon on January 1, 1854,and the assumed period of the Sun's sidereal rotation being 25-38 days. The numeration of therotations is in continuation of Carrington's series (Observations of Solar Spots made atRedhill by R. C. Carrington, F.R.S.). No. 1 being the rotation commencing 1853 November9.The dates of commencement of the rotations are given in U.T.

No. ofRotation

RotationCanrnenced

~ Mean Projected Daily Area

Ph0t°" IM,r. ™*°le

graphed «*'* SpotsFacula

Mean Corrected Daily Area

Uifcrœ FaculSpots

1396139713981399140014011402140314041405140614071408

1958 JanuaryFebruaryMarchAprilMayMayJuneJulyAugustSeptemberOctoberNovemberD» center

12.969-308.644.942.20

29.4225.6122.8219.0415.3012.588.876.18

27282727282727272728272728

690647

1056720592537640751653628640471665

3945377164274380344234413803456240483546406529424303

1852165617121898182518911741173319521704165117121566

497479785530441409465562480461453328484

2870286148733289264626512804347230152655289620763178

2332205721642312236023742212224824842131207721131982

MEAN AREAS OF SUNSPOTS AND FACUUE FOR THE YEAR

The mean projected areas are expressed in millionths of the Sun's apparent disk.

The mean areas corrected for foreshortening are expressed in millionths of the Sun'svisible hemisphere.

YearDaysHioto-graphed

M>an Projected Daily Area

Umbra! ™lole FaculatSpots

Mean Corrected Daily Area

Umbre Wlole FaculaSpots

1958 365 667 4051 1765 489 3016 2225

Page 107: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

1962] PHOTOHELIOGRAPHIC RESULTS 1958 С 291

MEAN HELIOGRAPHIC LATITUDE OF SUNSPOTS FOR EACH ROTATION OF THE SUN,

FROM 1958 JANUARY 13 TO 1959 JANUARY 2

The numbers given in the accompanying table have been formed as follows:-

The Heliographie latitude of each spot for each day has been multiplied by its area(corrected for foreshortening), and the sum of the products, for spots north of the equator,has been divided by the sum of the corresponding areas to form the mean Heliographie latitudeof spotted area north of the equator; similarly for spots south of the equator. In forming themean heliographic latitude of entire spotted area, the algebraic sum of the products for spotsnorth and south of the equator has been divided by the sum of the areas; and for the meandistance from the equator of all spots the numerical sum of the products, without regard to thesign of latitude, has been similarly divided.

The mean areas have been formed by dividing the sum of the daily areas (corrected forforeshortening) by the number of days of observation for each rotation of the Sun and areexpressed in millionths of the Sun's visible hemisphere.

No.of RotationRotation Qomnenced

1396 1958 January 12.961397 February 9.301398 March 8.641399 April 4.941400 May 2.201401 May 29.421402 June 25.611403 July 22.821404 August 19.041405 September 15. 301406 October 12.581407 November 8.871408 December 6.18

Days

Photo-

graphed

27

28

27

272827

27

27

27

28

27

27

28

Northern Spots

Mean Mean

Daily Hel.

Area Let.

1378

1034

2627

1903

13922047

1494

1429

1359

842821

7751250

19.07

17.13

20.82

17.5320.6325.33

17.83

18.77

18.58

18.80

19.67

16.21

15.08

Southern Spots

Mean Mean

Daily Hel.

Area Let.

149218272246138612546041310204316551814207513001928

0

15.4816.6515.7918.2915.8918.7218.7415.2612.5515.9612.7913.8911.56

All Spots

Mean MeanHel. Dist.fromLet. Equator

. о+ 1.11-4.44+ 3.94+ 2.43+ 3.33+15.29+ 0.75- 1.25+ 1.49- 4.94- 3.59- 2.65- 1.08

17.2016.8218.5017.8518.3923.8218.2516.7015.2716.8614.7414.7512.94

MEAN HELIOGRAPHIC LATITUDE OF SUNSPOTS FOR THE YEAR

Year

1958

DaysPhoto-graphed

365

Northern Spots

Mean MeanDaily Hel.Area Lat.

1407 19.21

Southern Spots

Mean MeanDaily tel.Area Lat.

1609 15.26

All Spots

Mean MeanHel. Dist.fromLat. Equator

о+0.82 17.10

Page 108: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

С 292 ROYAL OBSERVATORY BULLETINS [NO. 60 1962]

SUMMARY OF SOLAR ACTIVITY FOR THE YEAR 1958

The chief features of the record for 1958 are as follows: -

(1) Activity remained at a very high level and although the mean daily area was slightlybelow that of 1957, the number of groups, including one-day spots, exceeded the total for thatyear.

(.2) The largest spot group crossed the Sun's central meridian on June 10.1 in latitude28° North; its mean area was 1587 millionths.

In addition, there were 50 other groups with mean areas exceeding 500 millionths, including12 with mean areas exceeding 1000 mil l ionths.

(3) On no day was the Sun free from spots or faculae.

(4 ) The ratio of mean corrected areas of faculae/sunspots was 0.74 and that of mean correctedareas of umbrte/whole spots 0.162.

(5) Although the southern hemisphere was more spotted than the northern, the mean latitudeof spots in the latter was higher.

The number and distribution, northern and southern hemispheres, of spot groups of

(a) two days' duration or longer(b) one day's duration

were as follows:-

(a) (b)Northern spots 354 137

Southern spots 307 100

Total 661 237

(6) The following table gives the mean daily areas of sunspots (projected and corrected

values) and facula» (corrected only) for each calendar month.

Month

Jan.

Feb.

Mar.

Apr.

May

June

July

Aug.

Sept.

Oct.

Nov.

Dec.

Spot!

Projected

4034

3489

5745

4812

3576

3407

4412

3934

4462

3422

2690

4544

3

Corrected

2998

2547

4438

3603

2708

2600

3287

2899

3341

2597

1878

3232

Faculte

Corrected

2403

2200

2092

2328

2357

2315

2240

2283

2322

2200

2066

1898

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Page 109: 1958 Greenwich Photo-Heliographic Results...for 1958.0 to be 75 10.'4, and the period of the Sun's sidereal rotation to be 25.38 days. The The meridian which passed through the ascending

ROYAL OBSERVATORY BULLETINS

2s.

9s.

21. Magnetic Results, 1957 (Abinger

and Hartland)

22. Time Service (Jan.-Mar., 1960)

23. Measurements of Radial Velocity

from Coude Plates.

R. v. d. K. Wool Icy.

D. H. P. /ones and L. H. Hather24. Photometry of the Cluster

NX 2477. 0. J. Eifer, andR. H. Stoy

25. Three-Colour Photoelectric

Photometry with the Cape

Refractors. A. W. J. Cousins.

0. /. Eigen and К. И. Stoy

26. Photoheliographic Results. 1957

27. Three-Colour Photometry in the

Southern Hemisphere: NX 6383

NOC 6405 and Standard Stars.

0. /. Eggen

28. Mechanization of Spherical

Harmonic Analysis. B. R. Leatonand S. R. C. Malin

29. Three-Colour Photometry of RedVariables. 0. J. Efjen

30. The Double-Lined Spectroscopic

Binary HD 133822 with notes on

Methods of Investigation.

D. S. Evans

31. The Period-Colour Relation for

Contact Binaries. O. J. E í fen33. Time Service (Apr.-June, I960)

33. Radial Velocities observed with

the Mount Wilson 60-inch

Telescope. D. И. P. /ones and

K. v. d. R. Wool ley

34. Design and Tests of a Mirror Transit

Circle Axis. R. d'E. Atkinson

35. Time Service (July-Sept., 1960)

36. Fundamental Data for Southern Stars,

III. A-type stars near the South

Galactic Pole. P. A. Wayman

37. Observations of Southern RR Lyrae

Stars. T. D. Kinman 7s

38. Double-Star Observations made with

the 28-inch Refractor, 1957-1960.

R. v. d. R. Wool ley.

D. H. P. Jones and H. P. Candy 5s

39. Time Service (Oct.-Dec. , I960)

40. Magnetic Results, 1958 (Hartland)

41. Space Motions and Distribution of

the Apparently Bright B-type

Stars. O. J. Sgien

42. Studies in the Equilibrium of

Globular Clusters, IV. Surface

Photometry compared with Theory.

R. v. d. R. Woolley and

R. J. Dickens

43. Photographic Photometry of the

Globular Cluster NX 6397.

K. v. d. R. Woolley.

J. B. Alexander. L. H. Hather

and E. A. Epps

In preparation

.6d. (post 4d.)

4s. (post 4d.)

6d. (post 4d.)

4s. (post 4d.)

6d. (post 7d.)

3s. (post 4d. )

2s.6d. (post 4d.)

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4s. (post 4d.)

2s. (post 4d.)

4a. (post 4d.)

4s. (post 4d.)

3s. (post 4d.)

6d. (post 6d.)

6d. (post Sd.)

3s. (post 4d.)

In preparation

6s.6d. (post 5d.)

2s. (post 3d.)

45. The Radial Velocity and Spectrum

of HD 134646. B. E. J. Faiei 2s. (polt 4d. )

46. Studies in the Equilibrium of

Globular Clusters, V. Rotation.

if. v. d. R. Wool ley and

R. J. Dicken* 2s. (post 4d.)

47. Time Service (Jan.-Mar., 1961) 3s. (post 4d. )

48. Fundamental Data for Southern

Stars (Fourth List). D. S. Evans,

A. Meniiea. R. H. Stoy and

P. A. Vayman 3s. (post 4d.)

49. Standard Magnitudes in the E

Regions. A. W. J. Cousins

and«. И. Stoy 8s. (post 6d.)

50. Photoelectric Magnitudes and

Colours of Southern DoubleStars. P. A. (Cayman 3s. (post 4d.)

51. Space-Velocity Vectors for 3483

Stars. 0. J. Eggen 40s.(post 2s.3d.)

52. The Distribution of АО Stars

Perpendicular to the Galactic

Plane. D. H. P. Jones 2s.6d. (post 4d.)

53. The Cluster Me lotte 66.

O. J. Eggen and Я. И. Stoy 2s. (post 4d. )

54. Studies in the Equilibrium of

Globular Cluatera, VI. Ejection

caused by Stellar Encounters.

R. v. d. K. Wool ley and

R. J. Dickens 4s. (post 4d.)

55. The Influence of Metal Abundance

Classification in Late-Type

Dwarfs. В. Е. J. Pagel 4s. (post 4d.)

56. Time Service (Apr.-June. 1961) 3s. (post 4d. )

57. Geomagnetic Secular Variation for

the epoch 1955-0. B. R. Lea ton 4m. (post 4d.)

58. Studies in the Mage lia aie Clouds,

IV. Photometry of Серпе ids in

Variable Field I, LMC.

R. v. d. R. Wool ley. A. R. Sandage.

O. J. Efgen, J. B. Alexander,

L. H. Hather, E. A. Epps and

S. JT. R. Jones 9s. (post 7d.)

59. Time Service (July-Sept.. 1961) 3s. (post 4d. )

6s

Observations of Twenty-four Single-

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