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.