small solar system body

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small solar system body

Any of various celestial bodies, such as asteroids and comets, that orbit the sun and are not classified as either planets or dwarf planets. See Usage Note at planet.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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asteroid
asteroidal
planet
Yarkovsky effect

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