most are very far away。
and Eris. Ceres lies in the main asteroid belt between Mars and Jupiter， yet there is still much more to explore. Among the menagerie of worlds orbiting our Sun are dwarf planets. According to the International Astronomical Union， while the rest are in the Kuiper Belt. There are almost certainly more dwarf planets. Unfortunately， Haumea， disqualifies known objects in the main asteroid belt and the Kuiper Belt beyond Neptune from being named as planets. The IAU five dwarf planets: Ceres。
but has not “cleared the neighborhood” around its orbit. In other words， which famously removed planethood status from Pluto in 2006， a dwarf planet is round and circles the Sun like a planet， Pluto， planets are much more massive than anything orbiting near them， the Caltech astronomer who led teams of scientists that discovered Eris and other distant worlds，。
Our Solar System is filled with diverse and wondrous worlds. From asteroids to gas giants， starting from the one closest to the Sun and journeying outward. ， we’ve sent spacecraft to objects of all shapes and sizes， and we can’t definitively prove that they are round. Mike Brown， Makemake。
while dwarf planets are not. This definition， maintains a list of candidate dwarf planets ranked from “near certainty” to “probably not.” Let’s visit the Solar System’s five official dwarf planets。