Английская Википедия:2011 MM4

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Шаблон:Use dmy dates

Шаблон:Infobox planet

Шаблон:Mp, provisional designation: Шаблон:Mp, is a sizable centaur and retrograde damocloid from the outer Solar System, approximately Шаблон:Convert in diameter. It was discovered on 24 June 2011, by astronomers with the Pan-STARRS 1 at the Haleakala Obs. in Hawaii.[1][2]

Orbit and classification

Шаблон:Mp orbits the Sun at a distance of 11.1–31.2 AU once every 97 years and 2 months (35,473 days; semi-major axis of 21.13 AU). Its orbit has an eccentricity of 0.47 and an inclination of 100° with respect to the ecliptic.[3] The body's observation arc begins at Pan-STARRS in June 2010.[1]

Retrograde centaur and damocloid

Шаблон:Mp is a member of the centaurs, a population of inward-moving bodies transiting from the Kuiper belt to the group of Jupiter-family comets. Orbiting mainly between Jupiter and Neptune, they typically have a semi-major axis of 5.5 to 30.1 AU. Centaurs are cometary-like bodies with an eccentric orbit. Their short dynamical lifetime is due to the perturbing forces exerted on them by the outer planets of the Solar System.[4]

The object is on a retrograde orbit as it has an inclination of more than 90°.[3][5] There are only about a hundred known retrograde minor planets out of nearly 800,000 observed bodies, and, together with Шаблон:Mpl- and Шаблон:Mpl-, it is among the largest such objects.[5] The object also meets the orbital definition for being a damocloid. This is a small group of cometary-like objects without a coma or tail and a Tisserand's parameter with respect to Jupiter of less than 2 besides a retrograde orbit.

Numbering and naming

This minor planet has no number yet.

Physical characteristics

Diameter and albedo

According to the survey of centaurs and scattered-disk objects carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Шаблон:Mp measures 64 kilometers in diameter and its surface has an albedo of 0.083,[6] which makes it too small to be considered as a dwarf-planet candidate.

Rotation period

Шаблон:As of, no rotational lightcurve of 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:Small Solar System bodies

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  1. ↑ 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  2. ↑ Ошибка цитирования Неверный тег <ref>; для сносок johnstonsarchive-TNO-list не указан текст
  3. ↑ 3,0 3,1 3,2 Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Peixinho-2003 не указан текст
  5. ↑ 5,0 5,1 Ошибка цитирования Неверный тег <ref>; для сносок Fuente-Marcos-2014 не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Bauer-2013 не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок lcdb не указан текст
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