How do Eris and other large Kuiper belt objects compare to Pluto and Charon?
Eris is similar in size to Pluto and about the same distance from the sun, while Charon is much smaller. Eris, Pluto, and Charon are all considered large Kuiper Belt objects, with Eris being slightly larger than Pluto and Charon being about half the size of Pluto.