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A planet (from Greek , alternative form of "wanderer") is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.


This category has only the following subcategory.


Pages in category "Planets"

The following 13 pages are in this category, out of 13 total.