Английская Википедия:(523676) 2013 UL10

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Шаблон:Use dmy dates Шаблон:Infobox planet

Шаблон:Mp (prov. designation: Шаблон:Mp) is a reddish centaur with cometary activity orbiting the Sun between Jupiter and Uranus. It was discovered on 18 August 2010, by a team of astronomers with the Pan-STARRS survey at the Haleakalā Observatory, Hawaii.[1] It is the first centaur known to have both comet-like activity and red surface colors. It is also one of the smallest centaurs, with a nucleus of no more than Шаблон:Convert in diameter.[2] Шаблон:As of, it has not been named.[1]

Orbit and classification

This object belongs to the centaurs, a dynamically unstable population of small Solar System bodies with chaotic orbits between the classical asteroids and the trans-Neptunian objects. Centaurs are considered to be objects with short lifetimes of approximately one million years, transitioning from the inactive population of Kuiper belt objects to the active group of Jupiter-family comets.[2] Шаблон:Mp orbits the Sun at a distance of 6.2–13.7 AU once every 31 years and 3 months (11,404 days; semi-major axis of 9.92 AU). Its orbit has a high eccentricity of 0.38 and an inclination of 19° with respect to the ecliptic.[3] It has a Tisserand's parameter with respect to Jupiter (TJ) of 2.94, near the threshold of 3, typically used to distinguish asteroids from Jupiter-family comets. On 4 June 2014, the object came to perihelion at 6.2 AU and has since been moving away from the Sun.Шаблон:Efn Шаблон:As of the object is at 10.7 AU,[4] The body's observation arc begins with its official discovery observation at Haleakalā Observatory in August 2010.[1]

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 25 September 2018, receiving the number Шаблон:LoMP in the minor planet catalog (Шаблон:Small).[5] Шаблон:As of, it has not been named.[1] According to the established naming conventions, it will be named after one of the many centaurs from Greek mythology, which are creatures with the upper body of a human and the lower body and legs of a horse.[6]

Physical characteristics

Файл:TheKuiperBelt Albedo and Color.svg
Шаблон:Mp has color index values similar to those of Шаблон:Mpl-.

As with other populations, the centaurs show a bimodal distribution of colors: red and blue-grey. Cometary-like activity is well known among the grey centaurs, prominently represented by 2060 Chiron, which is also the namesake of the Chiron-type comets. However, outgassing activity of red centaurs (e.g. 5145 Pholus) has not been observed. Шаблон:Mp is the first of the group of red centaurs to display clear evidence of cometary activity.[2]

In October 2014, Шаблон:Mp was observed by astronomers using the Large Monolithic Imager of the 4.3-meter Discovery Channel Telescope in Arizona. An overall reddish color was determined with B–V, V–R and B–R color indices of Шаблон:Val, Шаблон:Val and Шаблон:Val, respectively. It was the intrinsically faintest object observed for this study, with an absolute magnitude 13.46.[7][8]

In December 2015, observations with the Galileo National Telescope on the Canary Islands revealed that Шаблон:Mp exhibits comet-like activity. Apart from the object's dust coma, the astronomers also deduced a diameter of no more than Шаблон:Convert for this centaur's nucleus, assuming an albedo of 0.12. Further photometric observations gave a dust production rate of Шаблон:Val near the object's perihelion at 6.2 AU.[2]

The Collaborative Asteroid Lightcurve Link an estimates a diameter of kilometers 15.3 based on a albedo of 0.057 (carbonaceous) and on an absolute magnitude of 12.8. Шаблон:As of, no rotational lightcurve of Шаблон:Mp has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[3]

See also

Notes

Шаблон:Notelist

References

Шаблон:Reflist

External links

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 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  2. ↑ 2,0 2,1 2,2 2,3 Ошибка цитирования Неверный тег <ref>; для сносок Mazzotta Epifani-2018 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 AstDys-object не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-Circulars-Archive не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок IAU-nomenclature не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок lcdb не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Tegler-2016 не указан текст
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