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MERCURY
By: Chastity, Serina, Alexis, Chelsea
What is the size of Mercury?
• Mercury has a diameter of 4, 879 km
What is the composition?
• http://www.universetoday.com/13992/composition-of-mercury/
• Mercury doesn’t have an atmosphere but instead a thin exosphere composition of hydrogen, helium, oxygen, sodium, calcium, potassium and water vapor.
Missions
• Friendship7: February 20, 1962• Mercury Atlas 9: May 14, 1963• http://www.nasa.gov/mission_pages/mercury
/mercury_gallery.html
Information
• Axial tilt: 0.027 degrees• 88 days to orbit around the sun• Year=88 Earth days• One solar day lasts 176 Earth days• http://science.nationalgeographic.com/scienc
e/space/solar-system/mercury-article.html
Moons
• Mercury unlike other planets have no moon.
Special Features
• Mercury’s atmosphere doesn’t retain heat.• Closest to the Sun.
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