A body usually made up of ice, rock, and dust that orbits a star. 

Forms a trail through space due to solar winds (but [i]usually[/i] not visible with naked eye when viewer is on surface of planet)

Not to be confused with [[meteor]], which enters a planet's atmosphere (and can crash into stuff on the surface if large enough).

h4. See Also:
* [[meteor]]
* [[shooting star]]
* [[contrail]]