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2013 BL76
is a minor planet (centaur)〔 from the inner Oort cloud. Using an epoch of December 2014, it is the minor planet with the third-largest heliocentric semi-major axis in the Solar system ( and both have a larger heliocentric semi-major axis).〔 has a barycentric semi-major axis of ~925 AU.〔, which is also the third largest barycentric semi-major axis of any minor planet.
With an absolute magnitude (H) of 10.8〔 and an unknown albedo, the object has an estimated diameter of 15–40 km.〔 Since it has not been seen out-gassing, it is not known if it is a comet or not. It might also be a damocloid, a type of minor planet that was originally a comet but lost most of its near-surface volatile materials after numerous orbits around the Sun. It also might be a dormant comet that simply has not been seen outgassing.
came to perihelion 8.3AU from the Sun on October 27, 2012, when it reached an apparent magnitude of about 20.〔 In 1927, when it was 100AU from the Sun, it had an apparent magnitude of about 30.8.〔 For comparison dwarf planet 90377 Sedna had an apparent magnitude of 21.7 when it was 100AU from the Sun.〔
2013 BL76 travels in a technically retrograde orbit around the Sun. It is actually orbiting in a plane nearly perpendicular to that of the ecliptic. It has the 55th highest inclination of any known asteroid, after 2010 GW147 and before 2014 HS150.
== Largest semimajor axes of minor planets ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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