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Moon is a celestrial body, that moves around the Earth:

Distance from Earth (km): 384.403
Revolution: 23,321 days
Diameter (equator): 3.476 km
Perimeter: 10.920 km

The Moon movess around Earth at 36.800 kilometers/hour. It does not have an atmosphere, therefore temperatures range from -184 (night) to 214 degrees Celsius (day). The surface is covered by a fine-grained soil which results from the constant bombardment by small meteorites. The dark areas on Moon are young plains composed of basalt. The light areas are mountains that were uplifted as a result of meteorial impacts.

The gravitational pull of the Moon on the Earth affects the ocean tides on Earth. The closer the Moon is to Earth, the greater is this effect.

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© USGS Astrogeology Research Program

Radius: 1737.4 km
Mass: 7.18x1022 kg
Orbital Period: 27.32 Earth days
Rotation Period: 27.32 Earth days
Orbit: 384,400 km from Earth

The Moon is the satellite of the Earth.

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Moon And Earth As Viewed From Mars

© NASA Jet Propulsion Laboratory

Earth/Moon: This is the first image of Earth ever taken from another planet that actually shows our home as a planetary disk. Because Earth and the Moon are closer to the Sun than Mars, they exhibit phases, just as the Moon, Venus, and Mercury do when viewed from Earth. As seen from Mars by MGS on 8 May 2003 at 13:00 GMT (6:00 AM PDT), Earth and the Moon appeared in the evening sky. The MOC Earth/Moon image has been specially processed to allow both Earth (with an apparent magnitude of -2.5) and the much darker Moon (with an apparent magnitude of +0.9) to be visible together. The bright area at the top of the image of Earth is cloud cover over central and eastern North America. Below that, a darker area includes Central America and the Gulf of Mexico. The bright feature near the center-right of the crescent Earth consists of clouds over northern South America. The image also shows the Earth-facing hemisphere of the Moon, since the Moon was on the far side of Earth as viewed from Mars. The slightly lighter tone of the lower portion of the image of the Moon results from the large and conspicuous ray system associated with the crater Tycho.
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Earth
Moon (General)
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