Planet

A planet, often called a world, was a celestial body that was in orbit around a star, was neither a binary star nor a moon, and had cleared out the area around its orbit as it formed by causing all other smaller bodies in its orbit to accrete with it. As a consequence, it would not share its orbital region with any other bodies of significant size, except for moons or those collected later under its gravitational influence.

Text and facts from the “Planet/Legends” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.