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.

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Moon

elongation

Astronomy; Moon

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

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 ...

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.

far side

Astronomy; Moon

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

first quarter Moon

Astronomy; Moon

The phase of the Moon when it is 90 degrees away from a line between the Sun and the Earth, measured east - ward from the Sun, as seen from the north. The angle of illumination creates a half circle ...

full Moon

Astronomy; Moon

The phase of the Moon when it is entirely illuminated and visible from the Earth forming a full circle. At this point, the Moon is in opposition to the Sun, with the Earth in between.

gibbous Moon

Astronomy; Moon

The phase of the Moon when it is getting larger after the first quarter moon phase (waxing gibbous) or smaller after the full moon but before the last quarter moon (waning gibbous).