(523759) 2014 WK509

Last updated

(523759) 2014 WK509
Discovery [1]
Discovered by Pan-STARRS 1
Discovery site Haleakala Obs.
Discovery date14 September 2010
Designations
(523759) 2014 WK509
TNO [2]  · SDO [3]
distant [1]
Orbital characteristics [2]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 5 [2]  ·3 [1]
Observation arc 3.24 yr (1,185 days)
Aphelion 61.579 AU
Perihelion 40.098 AU
50.838 AU
Eccentricity 0.2113
362.49 yr (132,399 days)
271.50°
0° 0m 9.72s / day
Inclination 14.542°
41.033°
135.10°
Physical characteristics
Mean diameter
574  km  (est.) [4]
584 km (est.) [3]
0.09 (assumed) [3] [4]
4.4 [1] [2]
4.5 [4]

    (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]

    Contents

    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]

    Related Research Articles

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    <span class="nowrap">(523692) 2014 EZ<sub>51</sub></span>

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    (495603) 2015 AM281 (provisional designation 2015 AM281) is a resonant trans-Neptunian object in the outermost region of the Solar System, guesstimated at approximately 470 kilometers (290 miles) in diameter. It was discovered on 13 March 2010, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States.

    (505624) 2014 GU53 (provisional designation 2014 GU53) is a trans-Neptunian object and cubewano from the Kuiper belt, located in the outermost region of the Solar System. It was discovered on 8 April 2014, by astronomers with the Pan-STARRS survey at Haleakala Observatory, Hawaii, United States. The classical Kuiper belt object belongs to the hot population and is a dwarf planet candidate, as it measures approximately 330 kilometers (210 miles) in diameter.

    References

    1. 1 2 3 4 5 6 7 8 "2014 WK509". Minor Planet Center. Retrieved 8 February 2018.
    2. 1 2 3 4 5 6 7 8 "JPL Small-Body Database Browser: (2014 WK509)" (2015-01-21 last obs.). Jet Propulsion Laboratory . Retrieved 8 February 2018.
    3. 1 2 3 4 5 Johnston, Wm. Robert (30 December 2017). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 8 February 2018.
    4. 1 2 3 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.
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