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Astronomers discover new distant dwarf planet beyond Neptune
Astronomers have discovered a new dwarf planet orbiting in the disk of small icy worlds beyond Neptune. The new object is about 700 km in diameter and has one of the largest orbits for a dwarf planet. Designated 2015 RR245 by the International Astronomical Union's Minor Planet Center, it was found using the Canada-France-Hawaii Telescope on Maunakea, Hawaii, as part of the ongoing Outer Solar System Origins Survey (OSSOS). Ref. Source 6u.