(523764) 2014 WC510: Difference between revisions
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| mean_motion = {{Deg2DMS|0.0040103195|sup=ms}} / day |
| mean_motion = {{Deg2DMS|0.0040103195|sup=ms}} / day |
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| inclination = 19.542° |
| inclination = 19.542° |
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| asc_node = 194.464 |
| asc_node = 194.464° |
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| arg_peri = 289.173 |
| arg_peri = 289.173° |
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| satellites = 1 |
| satellites = 1 |
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| mean_diameter = {{val|181|16|ul=km}} {{small|(primary)}}<ref name="Leiva2020" /><br/>{{val|138|32|u=km}} {{small|(secondary)}}<ref name="Leiva2020" /> |
| mean_diameter = {{val|181|16|ul=km}} {{small|(primary)}}<ref name="Leiva2020" /><br/>{{val|138|32|u=km}} {{small|(secondary)}}<ref name="Leiva2020" /> |
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Revision as of 00:53, 30 September 2020
| File:523764 2014WC510 RodrigoLeiva SwRI.jpg Artist's impression of the 2014 WC510 binary system occulting a distant star | |
| Discovery [1] | |
|---|---|
| Discovered by | Pan-STARRS1 |
| 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 | |
| 342.994° | |
| 0° 0m 14.437s / day | |
| Inclination | 19.542° |
| 194.464° | |
| 289.173° | |
| Known satellites | 1 |
| Physical characteristics | |
| 181±16 km (primary)[4] 138±32 km (secondary)[4] | |
| 0.051±0.017[4] | |
| 22.0[1] | |
| 7.2±0.3[4] | |
(523764) 2014 WC510, is a binary trans-Neptunian object discovered on 8 September 2011, by astronomers with the Pan-STARRS1 survey at the Haleakalā Observatory in Hawaii. It was initially found by Pan-STARRS on 20 November 2014, but was announced later on 17 July 2016 after additional observations and precovery identifications.[5] It is located 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 around 180 km (110 mi) and 140 km (87 mi), respectively.[4]
Orbit and classification
2014 WC510 is a plutino, a subgroup of the resonant trans-Neptunian objects located in the inner region of Kuiper belt. Named after the group's largest member, Pluto, the plutinos are in a 2:3 mean-motion orbital resonance with Neptune, in which they make 2 orbits for every 3 Neptune makes.[2]
2014 WC510 orbits the Sun at a distance of 29.5–48.9 AU once every 246.8 years (89,768 days; semi-major axis of 39.24 AU). Its orbit has an eccentricity of 0.25 and an inclination of 19.5° with respect to the ecliptic.[3]
Numbering and naming
This minor planet was numbered by the Minor Planet Center on 25 September 2018 and received the number 523764 in the minor planet catalog.[6] As of 2020, it has not been named.[1]
References
- ^ a b c d "(523764) = 2014 WC510". Minor Planet Center. International Astronomical Union. Retrieved 28 September 2020.
- ^ a b Buie, M. W. "Orbit Fit and Astrometric record for 523764". Southwest Research Institute. Retrieved 28 September 2020.
- ^ a b c "JPL Small-Body Database Browser: 523764 (2014 WC510)" (2019-03-07 last obs.). Jet Propulsion Laboratory. Retrieved 28 September 2020.
- ^ a b c d e f Leiva, Rodrigo; Buie, Marc W.; Keller, John M.; Wasserman, Lawrence H.; Kavelaars, J. J.; Bridges, Terry (September 2020). "Stellar Occultation by the Resonant Trans-Neptunian Object (523764) 2014 WC510 Reveals a Close Binary TNO". The Planetary Science Journal. 1 (2): 48. doi:10.3847/PSJ/abb23d.
{{cite journal}}: Unknown parameter|displayauthors=ignored (|display-authors=suggested) (help)CS1 maint: unflagged free DOI (link) - ^ "MPEC 2016-O238: 2014 WC510". Minor Planet Electronic Circular. Minor Planet Center. 25 July 2016. Bibcode:2016MPEC....O..238G.
- ^ "M.P.C. 111781" (PDF). Minor Planet Circular. Minor Planet Center. 25 September 2018. Retrieved 28 September 2020.
External links
- SwRI study describes discovery of close binary trans-Neptunian object, 28 September 2020, Southwest Research Institute
- (523764) 2014 WC510 at the JPL Small-Body Database