Английская Википедия:(357439) 2004 BL86

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Шаблон:Use dmy dates Шаблон:Infobox planet

Шаблон:Mp is a bright sub-kilometer asteroid and binary system, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately Шаблон:Convert in diameter. It was discovered on 30 January 2004 by astronomers of the Lincoln Near-Earth Asteroid Research at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico.[1] Its Шаблон:Convert moon was discovered during the asteroid's close approach to the Earth in January 2015.[2][3]

2015 Earth approach

On 26 January 2015 at 16:20 UTC, Шаблон:Mp passed Шаблон:Convert, or 3.1 lunar distances, from Earth.[4] The asteroid briefly peaked around apparent magnitude 9 and was near the celestial equator.[5] The asteroid was visible in telescopes with objectives of Шаблон:Convert or larger; high-end binoculars under a dark sky may also have worked.[6] Near closest approach the asteroid was moving about 2.5 degrees per hour (2.5 arcseconds per second).[5][7] The asteroid came to opposition (furthest elongation in the sky from the Sun) on 27 January 2015 at 04:37 UTC.[5] Around 5:00 UTC, the asteroid was near M44 (the Beehive Cluster).[7]

The 26 January 2015 approach of 3.1 lunar distances was the closest approach of Шаблон:Mp for at least the next 200 years.[4][8] For comparison, Шаблон:Mpl, about twice the size of Шаблон:Mp, passed Шаблон:Convert, or 1.3 lunar distances, from Earth on 31 October 2015.[9]

Satellite

A minor-planet moon, provisionally designated Шаблон:Mp, was first detected by ground-based telescopes by Joe Pollock and Petr Pravec.[10][11] Observations by the Goldstone Deep Space Communications Complex and Green Bank Telescope confirmed that it is a binary asteroid with a secondary roughly Шаблон:Convert across.[3] The secondary is estimated to orbit at least Шаблон:Convert from the primary.[2] About 16% of asteroids over Шаблон:Convert in diameter are thought to be binaries.[3]

Numbering and naming

This minor planet was numbered on 27 March 2013 (Шаблон:Small).[12] As of 2020, it has not been named.[1]

Gallery

Notes

Шаблон:Notelist

References

Шаблон:Reflist

External links

Шаблон:Commons category

Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:2015 in space Шаблон:Authority control

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  1. ↑ 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  2. ↑ 2,0 2,1 Ошибка цитирования Неверный тег <ref>; для сносок johnstonsarchive не указан текст
  3. ↑ 3,0 3,1 3,2 Ошибка цитирования Неверный тег <ref>; для сносок NASA-news-moon не указан текст
  4. ↑ 4,0 4,1 Ошибка цитирования Неверный тег <ref>; для сносок jpl-close не указан текст
  5. ↑ 5,0 5,1 5,2 Ошибка цитирования Неверный тег <ref>; для сносок NEODyS2015 не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Musgrave20150123 не указан текст
  7. ↑ 7,0 7,1 Ошибка цитирования Неверный тег <ref>; для сносок st20150122 не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок twitter20150207 не указан текст
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок 2015TB145 не указан текст
  10. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Pollock-2015a не указан текст
  11. ↑ Ошибка цитирования Неверный тег <ref>; для сносок NRAO20151030 не указан текст
  12. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-Circulars-Archive не указан текст
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