(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. ^[1] The object's diameter has been estimated to measure approximately 600 kilometers. ^{[3] [4]}

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. ^[2] The body's observation arc begins on 14 September 2011 at Haleakala, more than 3 years prior to its official first observation. ^[1] Its orbit still has a high uncertainty. ^{[1] [2]}

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 25 September 2018 ( M.P.C. 111779). ^[5] As of 2018, it has not been named. ^[1]

Physical characteristics

Based on an absolute magnitude of 4.4, ^[2] and an assumed albedo of 0.09, the Johnston's archive estimates a mean-diameter of approximately 584 kilometers (363 mi). ^[3]

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. ^[2]

References

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 diagram · Orbital elements · Physical parameters