A minor planet is an astronomical object that is neither a planet, nor a moon. Minor planets can be dwarf planets, asteroids, Kuiper belt objects, or comets. All bodies in the Solar System other than the Sun and the eight giant planets are minor planets. Minor planets can be found anywhere in the Solar System. Minor planets are named according to their characteristic features.

There are tiny, icy orbs called asteroids, which typically range in size from a few meters to a few kilometers. Some asteroids, such as 22842 Holmberg, are much larger, up to a mile across!