Английская Википедия:(148209) 2000 CR105

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Шаблон:Use dmy dates Шаблон:Infobox planet Шаблон:Mp is a trans-Neptunian object and the tenth-most-distant known object in the Solar System Шаблон:As of. Considered a detached object,[1][2] it orbits the Sun in a highly eccentric orbit every 3,305 years at an average distance of 222 astronomical units (AU).[3]

Description

Шаблон:See also Mike Brown's website lists it as a possible dwarf planet with a diameter of Шаблон:Convert based on an assumed albedo of 0.04 .[4] The albedo is expected to be low because the object has a blue (neutral) color.[4] However, if the albedo is higher, the object could easily be half that size.

Шаблон:Mp and Sedna differ from scattered-disc objects in that they are not within the gravitational influence of the planet Neptune even at their perihelion distances (closest approaches to the Sun). It is something of a mystery as to how these objects came to be in their current, far-flung orbits. Several hypotheses have been put forward:

  • They were pulled from their original positions by a passing star.[5][6]
  • They were pulled from their original positions by a very distant, and as-yet-undiscovered (albeit unlikely), giant planet.[7]
  • They were pulled from their original positions by an undiscovered companion star orbiting the Sun such as Nemesis.[7]
  • They were captured from another planetary system during a close encounter early in the Sun's history.[5] According to Kenyon and Bromley, there is a 15% probability that a star like the Sun had an early close encounter and a 1% probability that outer planetary exchanges would have happened. Шаблон:Mp is estimated to be 2–3 times more likely to be a captured planetary object than Sedna.[5]

Шаблон:Mp is the first object discovered in the Solar System to have a semi-major axis exceeding 150 AU, a perihelion beyond Neptune, and an argument of perihelion of Шаблон:Val.[8] It is one of eleven objects known with a semi-major axis greater than 100 AU and perihelion beyond 42 AU.[9] It may be influenced by Planet Nine.[10]

See also

References

Шаблон:Reflist

External links

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

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  1. ↑ Шаблон:Cite book
  2. ↑ Шаблон:Cite journal
  3. ↑ Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  4. ↑ 4,0 4,1 Ошибка цитирования Неверный тег <ref>; для сносок BrownDP не указан текст
  5. ↑ 5,0 5,1 5,2 Шаблон:Cite journal
  6. ↑ Шаблон:Cite journal
  7. ↑ 7,0 7,1 Шаблон:Cite journal
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок jpl-search не указан текст
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок mpc-100 не указан текст
  10. ↑ Ошибка цитирования Неверный тег <ref>; для сносок findplanet9 не указан текст
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