Английская Википедия:(459883) 2014 JX55
Шаблон:Mp is an asteroid from the central regions of the asteroid belt. After its first observations as Шаблон:Mp in 2007, it was considered an inner heliospheric asteroid and near-Earth object with one of the closest perihelions ever observed of any body orbiting the Sun,[1] until further observations invalidated the conclusions from early observations. The object measures approximately Шаблон:Convert in diameter.
Orbit and classification
Inner heliospheric asteroid
When the object was first observed as Шаблон:Mp by the Mount Lemmon Survey in March 2007, it was considered to have the second-smallest positive semi-major axis (0.55 AU) of any known object orbiting the Sun, after Mercury. It was classified as an Apohele asteroid, which always stay inside of Earth's orbit, approaching within Шаблон:Convert of the Sun approximately every 148 days, before leaving for a distance of 0.98 AU, making it a Mercury- and Venus-crossing asteroid.[1] If these early orbital calculations had not turned out to be wrong, the object would still rank today among the inner heliospheric asteroids with the smallest known perihelia.[2]
Orbital determination as main-belt asteroid
The object remained listed as an inner heliospheric asteroid for several years,[3] until identifications with Шаблон:Mp and Шаблон:Mp and a subsequent improvement of the orbital uncertainty completely overturned previous calculations. Шаблон:Mp is now a secured central main-belt asteroid orbiting the Sun at a distance of 2.2–3.1 AU once every 4 years and 3 months (1,555 days; semi-major axis of 2.63 AU). Its orbit has an eccentricity of 0.17 and an inclination of 32° with respect to the ecliptic.[4][5]
References
External links
- Atira Шаблон:Mp
- Asteroids On An Inside Track, Al Grauer
- Dawn of Small Worlds: Dwarf Planets, Asteroids, Comets – Atira group, p.34, Michael Moltenbrey
- Asteroid 2007 EB26 Near-Mercury Flyby (0.020 AU), icalshare.com
- Could there be objects orbiting interior to Mercury?, curious.astro.cornell.edu
- Jerusalem Girls Win the Telescope, weizmann-usa.org, March 2016
- Current
- Discovery Circumstances: Numbered Minor Planets (455001)-(460000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
- ↑ 1,0 1,1 Ошибка цитирования Неверный тег
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<ref>; для сносокAstDys-objectне указан текст
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