Ss:Quaoar

Dwarf planet candidate orbiting, about 900 km in diameter.

Eris Could Be as Small as Pluto (Dec 2010)

 * See SS Eris, SS Pluto, SS Haumea, SS Makemake, SS Sedna


 * http://www.usatoday.com/tech/science/space/2011-01-12-dwarfplanets12_CV_N.htm