Английская Википедия:C/2011 J2 (LINEAR)

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Шаблон:Short description Шаблон:Use dmy dates Шаблон:Infobox Comet

C/2011 J2 (LINEAR) is an Oort cloud comet discovered on 4 May 2011 by LINEAR at an apparent magnitude of 19.7 using a Шаблон:Convert Reflecting telescope.[1][2] As of September 2014 the comet is around apparent magnitude 17.[3]

C/2011 J2 came to perihelion (closest approach to the Sun) on 25 December 2013 at a distance of 3.4 AU from the Sun.[3] On 27 August 2014 an 18th magnitude fragment CK11J02b was detected.[3] Preliminary estimates are that a fragmentation event occurred around 14 July 2014 plus/minus ten days.[4] In mid-July 2014 the comet was 3.9 AU from the Sun.

Fragment C was detected in October 2014 by Ernesto Guido, Nick Howes, and Martino Nicolini.[5]

C/2011 J2 is dynamically new. It came from the Oort cloud with a loosely bound chaotic orbit that was easily perturbed by galactic tides and passing stars. Before entering the planetary region (epoch 1950), C/2011 J2 had an orbital period of several million years.[6] After leaving the planetary region (epoch 2050), it will be on an ejection trajectory.[6]

References

Шаблон:Reflist

External links

Шаблон:Comets Шаблон:2013 in space

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