article: Planets beyond Neptune
links: Voyager 2 Neptune Planet 9 Pluto Uranus (136199) Eris Centaur (planetoid) Percival Lowell Astronomical Unit 90377 Sedna Plutino Sun Tyche (Planet) Clyde Tombaugh Tyche (planet) Oort cloud Trans-Neptunian object Jupiter Kuiper belt International Astronomical Union Solar System