(15760) 1992 QB 1 , and are still in near primordial, low-eccentricity orbits. [ 73 ] Pluto and Charon Comparison of Eris , Pluto , Makemake , Haumea , Sedna , Orcus , 2007 OR 10 , Quaoar , and Earth (all to scale). Pluto (39 AU average), a dwarf planet,