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 18 Aug. 2019.
Comets and asteroids A-Z 2013. Space, Solar System. Retrieved 18 August 2019, from
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Space, Solar System, s.v. "Comets and asteroids A-Z," accessed August 18, 2019.
https://www.q-files.com/space/solar-system/comets-and-asteroids-a-z/
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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