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(523759) 2014 WK₅₀₉ (provisional designation 2014 WK₅₀₉) is a trans-Neptunian object in the scattered disc, located in the outermost regions of the Solar System. It was discovered on 14 September 2010, by Pan-STARRS at Haleakala Observatory on the island of Maui, Hawaii, in the United States. The object's diameter has been estimated to measure approximately 600 kilometers.

Orbit and classification

2014 WK₅₀₉ belongs to the scattered disc population. It orbits the Sun at a distance of 40.1–61.6 AU once every 362 years and 6 months (132,399 days; semi-major axis of 50.8 AU). Its orbit has an eccentricity of 0.21 and an inclination of 15° with respect to the ecliptic. The body's observation arc begins on 14 September 2011 at Haleakala, more than 3 years prior to its official first observation. Its orbit still has a high uncertainty.

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 25 September 2018 (M.P.C. 111779). As of 2018, it has not been named.

Physical characteristics

Based on an absolute magnitude of 4.4, and an assumed albedo of 0.09, the Johnston's archive estimates a mean diameter of approximately 584 kilometers (363 mi).

As of 2018, no rotational lightcurve of this object has been obtained from photometric observations. The object's rotation period, pole and shape remain unknown.

References

1. ^ "2014 WK509". Minor Planet Center. Retrieved 8 February 2018.
2. ^ "JPL Small-Body Database Browser: (2014 WK509)" (2015-01-21 last obs.). Jet Propulsion Laboratory. Retrieved 8 February 2018.
3. ^ Johnston, Wm. Robert (30 December 2017). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 8 February 2018.
4. ^ Michael E. Brown. "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Retrieved 8 February 2018.
5. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 7 October 2018.

External links

• List Of Centaurs and Scattered-Disk Objects, Minor Planet Center
• (523759) 2014 WK509 at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• (523759) 2014 WK509 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

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Category

• Minor planet object articles (numbered)
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• Astronomical objects discovered in 2014