28978 Ixion
Minor planets
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28978 Ixion is a large trans-Neptunian object and a possible dwarf planet. It is located in the Kuiper belt, a region of icy objects orbiting beyond Neptune in the outer Solar System. Ixion is classified as a plutino, a dynamical class of objects... Wikipedia
Discovered: May 22, 2001
Discoverer: James L. Elliot
Mean diameter: 709.6±0.2 km
Absolute magnitude (H): 3.774±0.021; 3.6 (assumed)
Earliest precovery date: 17 July 1982
Eccentricity: 0.24579
Geometric albedo: 0.108±0.002 geometric; 0.037±0.007 Bond