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Moon

The Earth's only natural satellite. The moon has a cold, dry orb covered with many lunar craters and strewn with rocks and dust. The moon has no atmosphere. But recent lunar missions have found plenty frozen water on the moon.

Contributors in Moon

Moon

anomalistic month

Astronomy; Moon

The period of time it takes the Moon to pass between perigee (or apogee) passages - that is, the 27. 55455 day period during which the Moon moves from its closest (or farthest) point to the Earth, ...

anorthositic rock

Astronomy; Moon

A type of rocks found on the Moon in abundance at higher elevations which is calcium-rich.

aphelion

Astronomy; Moon

The point in a planet's orbit around the Sun when it is farthest from the Sun (opposite of perihelion).

apogean tide

Astronomy; Moon

The name for low tide when the Moon is at it's farthest point from the Earth.

apogean

Astronomy; Moon

Tide The low tide of the month that occurs when the Moon is at tide apogee (farthest from Earth).

apogee

Astronomy; Moon

The point in the Moon's orbit when it is farthest from the Earth (opposite of perigee).

apolune

Astronomy; Moon

The point in the orbit of an object around the Moon (such as a spacecraft) when it is farthest from the Moons surface.

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