lecture_tan12 - Key Concepts: Lecture 12 Lunar surface The...

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Key Concepts: Lecture 12 The Moon: Structure Formation Landing of the Eagle - Apollo 11 Lunar surface The Moon - Overview • Only Natural Satellite of Earth Parameter Moon Earth Distance from Earth 384,400 km Radius 1738 km 6378 km Mass 7.35 x 10 22 kg 5.97 x 10 24 kg Average Density 3340 kg/m 3 5520 kg/m 3 Escape speed 2.4 km/s 11 km/s Atmosphere Neon, Helium (thin!) Nitrogen, Oxygen Basically no atmosphere on the Moon
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Exploring the Moon • Moon first observed through a telescope by Galileo in 1609 • First orbited by Soviet spacecraft Luna 2 in 1959 • Only extraterrestrial body to be visited by humans – first manned landing - July 20, 1969 Apollo 11 1 st to walk on the Moon • Some more recent missions to the Moon: Clementine (1994), Lunar Prospector (1998- 1999). Discoveries from the Apollo Missions • Structure is differentiated like Earth’s – low density rocky crust - 60 km thick thick) • solid, unlike Earth’s more plastic
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This note was uploaded on 09/07/2011 for the course AST 1002 taught by Professor Dr.haywoodsmith,jr during the Spring '07 term at University of Florida.

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lecture_tan12 - Key Concepts: Lecture 12 Lunar surface The...

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