Year 7 Astronomy Vocabulary for the Stars!

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Astronomy

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The study of space, including stars, planets, and moons.

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Solar System

Back

The Sun and all the planets, moons, asteroids, and other objects that move around it.

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Planet

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A large object that moves around a star (like the Sun).

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Dwarf Planet

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A small planet that moves around the Sun but does not clear other objects from its path.

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Star

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A big, hot ball of glowing gases that gives off light and heat (like the Sun).

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Moon

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A natural object that moves around a planet.

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Asteroid

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A small rocky object that moves around the Sun, mostly found between Mars and Jupiter.

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Comet

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A ball of ice and dust that orbits the Sun and has a glowing tail.

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Orbit

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The path an object takes as it moves around another object (like Earth around the Sun).

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Rotation

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When a planet or object spins on its axis.