Английская Википедия:2011 SL25

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Use dmy dates Шаблон:Infobox planet

Шаблон:Mp, also written as 2011 SL25, is an asteroid and Mars trojan candidate that shares the orbit of the planet Mars at its Шаблон:L5 point.[1]

Discovery, orbit and physical properties

Шаблон:Mp was discovered on 21 September 2011 at the Alianza S4 Observatory Шаблон:Obscode on Cerro Burek in Argentina[2] and classified as Mars-crosser by the Minor Planet Center. It follows a relatively eccentric orbit (0.11) with a semi-major axis of 1.52 AU.[2] This object has noticeable orbital inclination (21.5°).[2] Its orbit was initially poorly constrained, with only 76 observations over 42 days, but was recovered in January 2014.[3] Шаблон:Mp has an absolute magnitude of 19.5 which gives a characteristic diameter of 575 m.[3]

Mars trojan and orbital evolution

Recent calculations indicate that it is a stable Шаблон:L5 Mars Trojan with a libration period of 1400 yr and an amplitude of 18°.[1][4] values as well as its short-term orbital evolution are similar to those of 5261 Eureka.[5][6]

Origin

Long-term numerical integrations show that its orbit is stable on Gyr time-scales (1 Gyr = 1 billion years). It appears to be stable at least for 4.5 Gyr but its current orbit indicates that it has not been a dynamical companion to Mars for the entire history of the Solar System.[1]

See also

References

Шаблон:Reflist

Further reading

External links

Шаблон:Mars Шаблон:Portal bar Шаблон:Small Solar System bodies Шаблон:Authority control

Партнерские ресурсы
Криптовалюты
Магазины
Хостинг
Разное

  1. ↑ 1,0 1,1 1,2 Шаблон:Cite journal
  2. ↑ 2,0 2,1 2,2 MPC data on 2011 SL25
  3. ↑ 3,0 3,1 Шаблон:Cite web
  4. ↑ Шаблон:Cite journal
  5. ↑ Шаблон:Cite journal
  6. ↑ Шаблон:Cite journal
Источник — http://wikihandbk.com/ruwiki/index.php?title=Английская_Википедия:2011_SL25&oldid=12717376