(523764) 2014 WC510
Binary trans-Neptunian object / From Wikipedia, the free encyclopedia
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(523764) 2014 WC510 (provisional designation 2014 WC510) is a binary trans-Neptunian object discovered on 8 September 2011 by the Pan-STARRS survey at the Haleakalā Observatory in Hawaii. It was found by Pan-STARRS on 20 November 2014 and was announced later in July 2016 after additional observations and precovery identifications. It is in the Kuiper belt, a region of icy objects orbiting beyond Neptune in the outer Solar System. It is classified as a plutino, a dynamical class of objects in a 2:3 orbital resonance with Neptune. On 1 December 2018, a team of astronomers observed a stellar occultation by the object, which revealed that it is a compact binary system consisting of two separate components in close orbit around each other. The primary and secondary components are estimated to have diameters of around 180 km (110 mi) and 140 km (87 mi), respectively.
Discovery[1] | |
---|---|
Discovered by | Pan-STARRS 1 |
Discovery site | Haleakalā Obs. |
Discovery date | 8 September 2011 (first imaged) |
Designations | |
2014 WC510 | |
plutino[2] · TNO[3] distant[1] · binary[4] | |
Orbital characteristics[3] | |
Epoch 31 May 2020 (JD 2459000.5) | |
Uncertainty parameter 2 | |
Observation arc | 7.49 yr (2,737 days) |
Aphelion | 48.936 AU |
Perihelion | 29.535 |
39.236 | |
Eccentricity | 0.24724 |
245.77 yr | |
342.994° | |
0° 0m 14.437s / day | |
Inclination | 19.542° |
194.464° | |
289.173° | |
Known satellites | 1 |
Physical characteristics | |
Mean diameter | 181±16 km (primary)[4] 138±32 km (secondary)[4] |
0.051±0.017[4] | |
22.0[1] | |
7.2±0.3[4] | |