Astronomy Terms

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Orbit

Back

The path a planet takes around a star

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Gravity

Back

The force that attracts or pulls objects toward each other

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Rotation

Back

The spinning of a planet on its axis

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Revolution

Back

The movement of an object in a circular or elliptical path around another object

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Solar Eclipse

Back

When the Moon passes between the Sun and Earth

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Astronomical Unit (AU)

Back

The average distance between Earth and the Sun

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Mass

Back

The amount of matter in an object

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Moon

Back

A large body that orbits a planet

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Comet

Back

A celestial object consisting of a nucleus of ice and dust that orbits the sun