Dwarf planet candidate orbiting in a detached orbit around the Sun. Orbit is not affected by Neptune. Its year is 12,000 years and size thought to be two thirds that of Pluto's.
Ss:Sedna Web Pages
Ss:Sedna In the News
Eris Could Be as Small as Pluto (Dec 2010)
- See Eris, Pluto, Haumea, Makemake, Sedna