Discovered by WISE
LINEAR (704) Minor planet category Centaur (DES) Discovered 30 January 2010 Absolute magnitude 10.2 Apparent magnitude 21 | MPC designation 2010 BK118 Observation arc 1319 days (3.61 yr) Aphelion 144.062874 trillion m Asteroid group Centaur | |
Discovery date January 2010 (WISE)
19 September 2010 (LINEAR) Perihelion 6.1000 AU (912.55 Gm) (q) Discoverer Lincoln Near-Earth Asteroid Research Similar 2013 BL76, 2012 DR30, 2007 TG422, 2008 ST291, 65489 Ceto | ||
2010 BK118 (also written 2010 BK118) is a centaur roughly 20–60 km in diameter. It is on a retrograde cometary orbit. It has a barycentric semi-major axis (average distance from the Sun) of ~400 AU.
2010 BK118 came to perihelion in April 2012 at a distance of 6.1 AU from the Sun (outside the orbit of Jupiter). It has a Jupiter-MOID of 1.1 AU. As of 2016, it is 11 AU from the Sun.
It will not be 50 AU from the Sun until 2043. After leaving the planetary region of the Solar System, 2010 BK118 will have a barycentric aphelion of 791 AU with an orbital period of 8000 years.
References
2010 BK118 Wikipedia(Text) CC BY-SA