Is a Star in the Milky Way Galaxy

The Sun is at the Center of our

Solar System All planets, their

moons, comets, and Asteroids all

orbit the Sun

The Sun is 10,000 degrees F

109 times the size of the Earth

IT IS MADE UP OF HUGE AMOUNT

OF GASES MAINLY HYDROGEN.

IT IS 15X10000000 KM AWAY

FROM THE EARTH.TEMPERATURE

OF SUN IS 6000 DEGREE CELCIUS.

it is the 1st planet and closet to the

Sun

it Orbits the sun every 88 days It

Makes one Revolution every 59 days

it Has no moons it is made up of

rocks and metals.it s temperature

varies from 170[night]-450

[day]degree celcius. It has no

satallite.

2nd Planet from the Sun

Called Earth’s “twin” because

they are so similar in size.

Orbits the Sun every 225 days

Make one Revolution every

243 days Has no moons

The surface is actually

impossible to see due to cloud

cover Special imaging tools

have given us a look at what

the surface might look like. It

can be seen 1-3 hours before

the sunrise and 1-3 hours

after the sunset.

3rd Planet from the

Sun

Orbits the Sun every

365 days

Makes one Revolution

every 24 hours

Earth is the only

planet in the solar

system with life on it

Is made of 71% water

it Has only one

moon

Orbits the Earth every 27 hours Makes one Revolution every 29 days The Dark spots are called Maria The rest of the moon that is light grey is called the highlands

PHASES OF MOON

• WAXING MOON

• THE TIME WHEN THE SIZE OF MOON KEEPS ON INCREASING. ON 15 DAY THE FULL MOON APPEARS THIS IS KNOWN AS WAXING PHASE

• WANING MOON

• AFTER FULL MOON DAY WHEN THE MOON STARTS DECREASING FINALLY ON 25 DAY IT IS NOT VISIBLE AT ALL THIS PHASE OF DECREASING IS KNOWN AS WANING PHASE

4th

planet form the Sun

Orbits the Sun every 687 days

Makes one revolution every

24hrs. 39 min., and 35 sec Has

Two moons phobos and deimos

Is red due to its Iron rich

surface

It’s temp. ranges from 20-60

degree celciusIs the next body

in space we hope to land on .

4th

planet form the Sun

Orbits the Sun every 687 days

Makes one revolution every

24hrs. 39 min., and 35 sec. Has

63 satellites

Is red due to its Iron rich

surface temp. ranges from 13-

124 degree celcius Is the next

body in space we hope to land

on

6th

Planet from the Sun

Orbits the Sun every 29 years

Makes one revolution every

10hrs

Is known for its seven bold

rings made of rocks and ice

Is the 2nd

largest Planet

Has 33 satellites. Biggest

satellite is titan

7th

Planet from the Sun

Orbits the Sun every 84

years

Makes one revolution

every 17 hours

Only Planet to rotate on

its side

Has rings

Has 27 unknown satellites

Is the last planet we can

see with out a telescope.

Neptune

8th

planet from the

Sun Orbits the Sun

every 165 years Makes

one revolution every

16 hours Has Rings it

Has 13 known

satellites.

• Stars are self luminous celestial bodies. The light emitted by them does not rech our eyes continuously it passes through several layers of atmosphere. Nearest star to earth after sun is Alpha centauri and proxima centauri. Distance from earth is measured in light years

• A star is formed when a cloud of hydrogen gas and dust is pulled together under it’s own gravity.At high pressure hydrogen atom combines to form helium atoms which results into evolution of anormous amount of heat and light. The material in the center of cloud becomes a star while leftover material may planets or other celestial bodies of the solar system

• A small group of stars seems to form an imaginary but recognizable pattern in the sky called constellation. There are about 88 constellations known so far. These are named after the animals or mythological characters known to the people at that time. Some are described in next slides:

• This constellation is visible in winters in the northern part of the sky in early hours of night. It looks like distorted letter like m or w

• Orion is also called HUNTER. This constellation can be seen during winters in the late evenings . the three middle stars represents the belt of hunter. The brightest star is named SIRIUS it can be located with the help of Orion. Three prominent stars of Orion are ALPHA ORI, BETELGEUSEand RIGEL

• URSA MAJOR : It can be seen during summers in early hours of night in northerenpart of the sky.They constitute a shape of great bear.

• URSA MINOR : It is also called lesser bear.Itconsists of seven prominent stars.The seventh star at the end of tail is the pole star.

• This is a bright and a prominent star in the north direction which does not appear to move.It is situated above the north axis of rotation of the earth and therefore it does not appear to move

• A galaxy is an large collection of billions of stars. Our planet the earth also belongs to one galaxy named as milky way. It is an spiral galaxy.

• These are small non luminous celestial bodies of solar system. They are found between mars and jupiter this region is called asteriod belt these are madwe up of rocky,and metalic substances.

• These are small chunks of frozen gases and dust that revolve around the sun. These are non luminous bodies comet appears as a bright head and a long tail of glowing gases called coma. One such comet is halley’scomet which appears after every 76 years. It was last seen in the year 1986.

• Sometimes we see an bright streak of light in the sky these are commonly known as shooting stars these are called Meteors.

• Sometimes , meteors are large enough so that they do not burn completely and a part of them reaches on earth is called an Meteorite.

RAMIT GOEL [36]

RAJAT LUTHRA [35]