planet - A celestial body that orbits a star and has cleared its orbit of other debris., dwarf planet - A celestial body that orbits a star but has not cleared its orbit of other debris., moon - A natural satellite that orbits a planet., Sun - The star at the centre of our solar system, a yellow dwarf., asteroid - A relatively small, rocky object that orbits the Sun and is inactive., solar system - The Sun and all the celestial bodies that orbit it, including planets, moons, asteroids, and comets., exoplanet - A planet orbiting a star outside our solar system., star - A massive ball of very hot gas, primarily hydrogen and helium, undergoing nuclear fusion., galaxy - A vast collection of stars, planets, moons, asteroids, gas, and dust, all held together by gravity, often with a supermassive black hole at the centre., universe - The whole of space; everything!,

N5 Physics - Celestial Objects - Definitions

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