Comets and asteroids A-Z
Solar System
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Comets and asteroids A-Z. (2013). In Q-files Encyclopedia, Space, Solar System. Retrieved from
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"Comets and asteroids A-Z." Space, Solar System, Q-files Encyclopedia, 15 Aug. 2013.
https://www.q-files.com/space/solar-system/comets-and-asteroids-a-z/.
Accessed 1 Apr. 2020.
Comets and asteroids A-Z 2013. Space, Solar System. Retrieved 1 April 2020, from
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Space, Solar System, s.v. "Comets and asteroids A-Z," accessed April 1, 2020.
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Comets and asteroids A-Z
Asteroid A rocky body that orbits the Sun. Asteroids range in size from tiny specks to blocks about 1000 km (600 miles) in diameter. Most asteroids are made of rock, some are made of metal and some are made of rock and metal. They are sometimes referred to as planetoids or minor planets.
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