Английская Википедия:2013 UH15

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Шаблон:Use dmy dates

Шаблон:Infobox planet

Шаблон:Mp is an extreme trans-Neptunian object from the extended scattered disc in the outermost region of the Solar System, approximately Шаблон:Convert in diameter. It was first observed on 29 October 2013, by astronomers at the Las Campanas Observatory in the southern Atacama Desert of Chile.[1][2] The detached extended scattered disc object (ESDO) is on a highly eccentric orbit and belongs to the extreme trans-Neptunian objects.

Orbit and classification

Шаблон:Mp orbits the Sun at a distance of 35.0–305 AU once every 2221 years (811,042 days; semi-major axis of 170.2 AU). Its orbit has an exceptionally high eccentricity of 0.79 and an inclination of 26° with respect to the ecliptic.[3] The body's observation arc begins with its official first observation at Las Campanas in October 2013.[1] It has a minimum orbital intersection distance with Neptune of 12.9 AU.[1]

It belongs to a small group of detached objects with perihelion distances of 30 AU or more, and semi-major axes of 150 AU or more.[4] These extreme trans-Neptunian objects (ETNOs) can not reach such orbits without some perturbing object, which lead to the speculation of Planet Nine.

Numbering and naming

As of 2018, this minor planet has neither been numbered nor named by the Minor Planet Center. The official discoverers will be defined when the object is numbered.[1]

Physical characteristics

According to the Johnston's archive and to American astronomer Michael Brown, Шаблон:Mp measures 128 and 130 kilometers in diameter based on an assumed albedo of 0.09 and 0.08, respectively.[5][6] Due to its small size, it is listed as "probably not" a dwarf planet (100–200 km) on Michael Brown's website, which uses a 5-class taxonomic system that ranges from "nearly certainly" to "possibly" for potential dwarf planet candidates.[6] As of 2018, no rotational lightcurve has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[3][7]

See also

References

Шаблон:Reflist

External links

Шаблон:Trans-Neptunian objects Шаблон:Small Solar System bodies Шаблон:Authority control

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  1. ↑ 1,0 1,1 1,2 1,3 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  2. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-CEN-SDO-list не указан текст
  3. ↑ 3,0 3,1 Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-query-ETNO не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок johnstonsarchive-TNO-list не указан текст
  6. ↑ 6,0 6,1 Ошибка цитирования Неверный тег <ref>; для сносок Brown-dplist не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок lcdb не указан текст
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