(42301) 2001 UR163

Author(s): fyr02

Release date:

(42301) 2001 UR163 is a resonant trans-Neptunian object and possible dwarf planet located in the outermost region of the Solar System. The object is 352±85 km in diameter with a high albedo and stays in an uncommon orbital resonance (4:9) with Neptune. It has the reddest color (RR-U) of any object in the Solar System

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