==See also==* Planets beyond Neptune* Clearing the neighbourhood==References====External links==* Orbital simulation from JPL (Java) / Ephemeris* Orbit Determination of* Spacecraft escaping the Solar System (Heavens-Above)* World Book: Worlds Beyond Pluto
* (90377) Седна* Orbital simulation from JPL (Java) / Ephemeris* Orbit Determination of* Spacecraft escaping the Solar System (Heavens-Above)* World Book: Worlds Beyond Pluto