Mercury Basic data North hemisphere South hemisphere from MESSENGER Basic data: Radius is 0.38 of...

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Mercury Basic data North hemisphere South hemisphere from MESSENGER Basic data: Radius is 0.38 of Earth’s Mass is 0.06 of Earth’s Orbit has e=0.2, a=0.39AU Orbital period 88 days Rotation period of Mercury is 2/3 of this: 58.7 days Atmosphere is effectively absent, but

Transcript of Mercury Basic data North hemisphere South hemisphere from MESSENGER Basic data: Radius is 0.38 of...

Page 1: Mercury Basic data North hemisphere South hemisphere from MESSENGER Basic data: Radius is 0.38 of Earth’s Mass is 0.06 of Earth’s Orbit has e=0.2, a=0.39AU.

Mercury

Basic data

North hemisphere

South hemisphere from MESSENGER

Basic data:Radius is 0.38 of Earth’sMass is 0.06 of Earth’s Orbit has e=0.2, a=0.39AUOrbital period 88 daysRotation period of Mercury is 2/3 of this: 58.7 days

Atmosphere is effectively absent, but recently water and organic deposits have been found in north pole craters where sunlight never reaches

Page 2: Mercury Basic data North hemisphere South hemisphere from MESSENGER Basic data: Radius is 0.38 of Earth’s Mass is 0.06 of Earth’s Orbit has e=0.2, a=0.39AU.

J W Head et al. Science 2011Published by AAAS

Smooth plains at high northern latitudesRed circles: cratersBlue circles: ‘ghost’ craters covered by volcanic outflows

Lots of craters BUT evidence of volcanic activity from MESSENGER:

Page 3: Mercury Basic data North hemisphere South hemisphere from MESSENGER Basic data: Radius is 0.38 of Earth’s Mass is 0.06 of Earth’s Orbit has e=0.2, a=0.39AU.

W B McKinnon Science 2012

Once internal compression is taken into account, larger density than Earth

Recent mapping by CWRU’s Steve Hauck has shown that it has a much smaller mantle and larger core than other terrestrial planetsMercury has a magnetic field due to motions in molten core


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LA876 960530 stimulate the basic tattvas, balance hemisphere, … · LA876 960530 stimulate the basic tattvas, balance hemisphere, adjust your ribs, the basic of psyche will change

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FinLand russia norway - The American-Scandinavian FoundationFinLand russia The map of the earth’s northern hemisphere, left, shows the extent, in red, of the parts of norway, sweden,

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Seasonal climate summary southern hemisphere · PDF fileSeasonal climate summary southern hemisphere (autumn ... with higher rainfall over ... summary southern hemisphere (autumn 2013):

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