astro.wikisort.org - Asteroid

(523692) 2014 EZ₅₁, prov. designation: 2014 EZ₅₁, is a large trans-Neptunian object in the scattered disc, approximately 700 kilometres (430 miles) in diameter. It was discovered on 18 April 2010, by the Pan-STARRS 1 survey at Haleakala Observatory, Hawaii, United States.[1]

(523692) 2014 EZ₅₁

Discovery[1]
Discovered by	Pan-STARRS 1
Discovery site	Haleakala Obs.
Discovery date	18 April 2010
Designations
MPC designation	(523692) 2014 EZ51
Minor planet category	TNO[2][3] · SDO[4] · distant[1]
Orbital characteristics[2]
Epoch 17 December 2020 (JD 2459200.5)
Uncertainty parameter 3[2] · 4[1]
Observation arc	10.16 yr (3,710 d)
Aphelion	64.420 AU
Perihelion	40.376 AU
Semi-major axis	52.398 AU
Eccentricity	0.2294
Orbital period (sidereal)	379.29 yr (138,537 d)
Mean anomaly	269.18°
Mean motion	0° 0m 9.36s / day
Inclination	10.281°
Longitude of ascending node	27.612°
Argument of perihelion	330.11°
Physical characteristics
Mean diameter	>575 km (occultation)[5] 626 km (calculated)[6] 770 km (calculated)[3]
Geometric albedo	0.09 (assumed)[3] 0.11 (assumed)[6]
Absolute magnitude (H)	3.92[1][2]

Orbit and classification

2014 EZ₅₁ orbits the Sun at a distance of 40.4–64.4 AU once every 379 years and 3 months (138,537 days; semi-major axis of 52.4 AU). Its orbit has an eccentricity of 0.23 and an inclination of 10° with respect to the ecliptic.[2] The body's observation arc begins with its official discovery observation at Haleakala in April 2010.[1]

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 25 September 2018 (M.P.C. 111779).[7] As of 2021^[update], it has not been named.[1]

Physical characteristics

According to Michael Brown and the Johnston's archive, 2014 EZ₅₁ measures 626 and 770 kilometers in diameter, based on an absolute magnitude of 4.2 and 3.8, with an assumed albedo of 0.10 and 0.09, respectively.[6][3] The MPC/JPL databases give an absolute magnitude of 3.92.[1][2] On 25 February 2019, a stellar occultation by 2014 EZ₅₁ was observed in New Zealand. From these observations, a lower limit of 575 km was placed for its mean diameter.[5]

As of 2021^[update], no physical characteristics have been determined from photometric observations. The body's rotation period, pole and shape remain unknown.[2][8][9]

References

External links

• Discovery Circumstances: Numbered Minor Planets (520001)-(525000) – Minor Planet Center
• (523692) 2014 EZ51 at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• (523692) 2014 EZ51 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (523692) 2014 EZ51

(523692) 2014 EZ51 ist ein transneptunisches Objekt im Kuipergürtel, das als SDO eingestuft wird. Aufgrund seiner Größe ist der Asteroid ein Zwergplanetenkandidat.

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- [en] (523692) 2014 EZ51

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[ru] (523692) 2014 EZ51

2014 EZ51 — крупный транснептуновый объект в поясе Койпера, кандидат в карликовые планеты. Открыт группой астрономов в рамках проекта Pan-STARRS на снимках, полученных 12 марта 2014 года посредством телескопа Pan-STARRS 1, расположенном на вулкане Халеакала (Гавайи). Объявление об открытии опубликовано 16 июля 2016 года[1].

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