Английская Википедия:333P/LINEAR
333P/LINEAR is a Jupiter family periodic comet in retrograde orbit with an orbital period of 8.7 years. Upon discovery it was the sun-orbiting natural object in retrograde orbit with the shortest known orbital period. The comet was discovered by LINEAR on 4 November 2007.[1]
When discovered on 4 November 2007, the comet had an apparent magnitude of 18.5–19 and was asteroidal in appearance. It was given the provisional designation Шаблон:Mp.[1] During the next apparition, it was recovered by the iTelescope Observatory, in Siding Spring, Australia, on 18 November 2015, when it had an apparent magnitude of around 20, and on 1 January 2016 by the SONEAR observatory.[2] A small tail was observed and thus it was recategorised as a comet.[3] It brightened rapidly and reached a magnitude of 12.6 on 28 March 2016.[4]
When discovered, the comet was the first object with retrograde orbit within Jupiter's orbit. It was categorised as an Amor asteroid and was briefly considered potentially hazardous to Earth.[5] Stimulations indicated it was a comet nucleus that was possibly put into its current orbit after an interaction with Jupiter and in the future it will collide with the Sun or migrate beyond the orbit of Jupiter.[6] The cometary activity has been found to play a rule in the orbital evolution of the comet.[7]
See also
- 343158 Marsyas - near-Earth asteroid in retrograde orbit
References
External links
Шаблон:PeriodicComets Navigator Шаблон:Comets
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- Английская Википедия
- Jupiter-family comets
- Near-Earth comets
- Numbered comets
- Discoveries by LINEAR
- Astronomical objects discovered in 2007
- Minor planets with a retrograde orbit
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