Английская Википедия:(574372) 2010 JO179

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Шаблон:Use dmy dates Шаблон:Infobox planet

Шаблон:Mp, provisional designation: Шаблон:Mp, is a large, high-order resonant trans-Neptunian object in the outermost regions of the Solar System, approximately Шаблон:Convert in diameter.[1] Long-term observations suggest that the object is in a meta-stable 5:21 resonance with Neptune.[1] Other sources classify it as a scattered disc object.[2][3] It is possibly large enough to be a dwarf planet.[1]

First observation and orbit

Файл:2010 JO179 resonance.gif
The libration of Шаблон:Mp's nominal orbit, in a frame co-rotating with Neptune (click image to view animation)

The Minor Planet Center credits the object's first official observation on 10 May 2010 to Pan-STARRS Шаблон:Obscode at Haleakala Observatory, Hawaii, United States.[4][5] The observations were made by Pan-STARRSШаблон:' Outer Solar System Survey.[1] There are 4 February 1951 precovery images from the Palomar Observatory Sky Survey, extending the observation arc by approximately 60 years.[4] The precovery images are from the same year the object came to perihelion (closest approach to the Sun).

Шаблон:Mp orbits the Sun at a distance of 39.6–118 AU once every 699 years and 5 months (semi-major axis of 78.8 AU). Its orbit has a high eccentricity of 0.50 and an inclination of 32° with respect to the ecliptic.[6]

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 10 August 2021, receiving the number Шаблон:LoMP in the minor planet catalog (Шаблон:Small).[7] Шаблон:As of, it has not been named.[4]

Physical characteristics

Photometry

Photometric observations of Шаблон:Mp gave a monomodal lightcurve with slow rotation period of 30.6 hours, suggesting a rather spherical shape with significant albedo patchiness. An alternative period solution of a bimodal lightcurve is considered less likely. It would double the period and imply an ellipsoidal shape with an axis-ratio of at least 1.58.[1]

Diameter and albedo

The object's mean diameter has been estimated to measure 574 and 735 kilometers, with an assumed albedo of 0.09, by Michael Brown and the Johnston's Archive respectively,[2][8] while the discoverers estimate a diameter of 600–900 kilometers with an estimated albedo of 0.21 to 0.07.[1]

References

Шаблон:Reflist

External links

Шаблон:Dwarf planets Шаблон:Trans-Neptunian objects Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control

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  1. ↑ 1,0 1,1 1,2 1,3 1,4 1,5 Ошибка цитирования Неверный тег <ref>; для сносок Holman-2017 не указан текст
  2. ↑ 2,0 2,1 Ошибка цитирования Неверный тег <ref>; для сносок johnstonsarchive-TNO-list не указан текст
  3. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-CEN-SDO-list не указан текст
  4. ↑ 4,0 4,1 4,2 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPEC не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-Circulars-Archive не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Brown-dplist не указан текст
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