==References====External links==* The Meudon Multicolor Survey (2MS) of Centaurs and Trans-Neptunian objects* TNO Colors* KBO Surface Colors*Orbital simulation from JPL (Java) / Ephemeris* Red Planetoid Sedna covered in tar-colored sludge
* The Meudon Multicolor Survey (2MS) of Centaurs and Trans-Neptunian objects* TNO Colors* KBO Surface Colors* Orbital simulation from JPL (Java) / Ephemeris* Red Planetoid Sedna covered in tar-colored sludge