Moon

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.

Industry: Astronomy

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Moon

Occulation

Astronomy; Moon

The movement of one celestial object behind another. Such as a star behind the moon.

Ephemeris

Astronomy; Moon

A publication with information on how to locate the moon in the sky at a particular time. It contains the position of celestial bodies in the sky as seen from Earth at specific times. These ...

Ecliptic

Astronomy; Moon

The imaginary plane formed by the earth's orbit around the sun or the plane formed by the apparent motion of the sun through the sky during a full year.

Elongation

Astronomy; Moon

The angle found between the Moon and the Sun, from the perspective of the Earth.

Far side

Astronomy; Moon

The side of the Moon which faces away from the Earth and which is not visible from Earth bound viewers.

Eclipse

Astronomy; Moon

The blocking of light from the sun when the earth comes between the sun and moon or the moon between the sun and earth. The Moon frequently moves between the Earth and the Sun, blocking out the ...

Equatorial tide

Astronomy; Moon

A tide produced semi-monthly (or 328 hours) by the positions of the Moon over the equator as a result of its gravitation pull exerted on objects on the Earth.