Solar HTML - Cosmic Database

The Moon

Moon

Average Distance From Earth: 384,400 KM
Temperature on Sunlit Side: 100�C
Temperature on Dark Side: -150�C
Diameter: 3476 KM
Mass: 0.0125 Earth Standard
Gravity: 0.166 Earth Standard
Orbiting Time Around Earth: 27.33 Days

Analysis of data from NASA's Lunar Prospector spacecraft has confirmed that the Moon has a small core, supporting the theory that the bulk of the Moon was ripped away from the early Earth when an object the size of Mars collided with the Earth.
Another theory suggests that the moon was captured fully intact by the Earth's gravity.

Moon Creation