Английская Википедия:(48639) 1995 TL8

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Шаблон:Use dmy dates

Шаблон:Infobox planet

Шаблон:Mp is a binary trans-Neptunian object from the scattered disc in the outermost regions of the Solar System. It was discovered by Arianna Gleason in 1995 and measures approximately 176 kilometers in diameter. Its 80-kilometer minor-planet moon, provisionally designated Шаблон:Mp, was discovered on 9 November 2002.[1]

Discovery

Шаблон:Mp was discovered on 15 October 1995, by American astronomer Arianna Gleason as part of UA's Spacewatch survey at Kitt Peak National Observatory, near Tucson, Arizona.[2]

It was the first of the bodies presently classified as a scattered-disc object (SDO)[3]Шаблон:Failed verification to be discovered, preceding the SDO prototype Шаблон:Mpl by almost a year.Шаблон:Citation needed

Satellite

Файл:1995TL8.gif
Animation of two Hubble images of Шаблон:Mp's satellite in August 2001

A companion was discovered by Denise C. Stephens and Keith S. Noll, from observations with the Hubble Space Telescope taken on 9 November 2002, and announced on 5 October 2005. The satellite, designated Шаблон:Mp, is relatively large, having a likely mass of about 10% of the primary. Its orbit has not been determined, but it was at a separation of only about Шаблон:Convert to the primary at the time of discovery, with a possible orbital period of about half a day and an estimated diameter of Шаблон:Convert.[1]

Файл:1995 TL8 binary-earth comparison.jpg
A relative size and distance comparison of the Шаблон:Mp system with the Earth–Moon system. The scale of the Earth–Moon system has been reduced so Earth appears the same size as the Шаблон:Mp primary.

Scattered–extended object

Шаблон:Mp is classified as detached object (scattered–extended) by the Deep Ecliptic Survey, since its orbit appears to be beyond significant gravitational interactions with Neptune's current orbit.[4] However, if Neptune migrated outward, there would have been a period when Neptune had a higher eccentricity.

Simulations made in 2007 show that Шаблон:Mp appears to have less than a 1% chance of being in a 3:7 resonance with Neptune, but it does execute circulations near this resonance.[5]

Шаблон:Multiple image

Numbering and naming

This minor planet was numbered by the Minor Planet Center on 20 November 2002.[6] As of 2018, it has not been named.[2]

See also

Notes

Шаблон:Notelist

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. ↑ 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок johnstonsarchive не указан текст
  2. ↑ 2,0 2,1 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  3. ↑ Ошибка цитирования Неверный тег <ref>; для сносок johnstonsarchive-TNO-list не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Buie не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Emel'Yanenko-2008 не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-Circulars-Archive не указан текст
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