[Bobboau]

definition of a planet, by Bobboau:
a planet is a stelar body of suficent mass that it's material forms into the shape of a sphere under it's own gravity that orbits one or more stars

[Carl]

in that case, there are countless asteroids that you'd consider planets.

[Goober5000]

Asteroids aren't spheres though.

Technically, the Earth isn't a sphere either.  It bulges around the equator.

[Carl]

some asteroids are spheres.

[Bobboau]

display sevral, and it specificly says due to there own gravity.

[Carl]

Ceres. and Pallas to some extent.