Comet ISON
Oort cloud comet / From Wikipedia, the free encyclopedia
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Comet ISON, formally known as C/2012 S1, was a sungrazing comet from the Oort cloud which was discovered on 21 September 2012 by Vitaly Nevsky (Віталь Неўскі, Vitebsk, Belarus) and Artyom Novichonok (Артём Новичонок, Kondopoga, Russia).[5]
Quick Facts Discovery, Discovered by ...
Discovery | |
---|---|
Discovered by | V. Nevsky A. Novichonok (at ISON-Kislovodsk D00)[1] |
Discovery date | 21 September 2012 |
Orbital characteristics | |
Epoch | 14 December 2013 (JD 2456640.5)[2] |
Observation arc | 2.15 years |
Number of observations | 6682 |
Orbit type | Oort cloud |
Perihelion | 0.01244 AU (q)[2] |
Eccentricity | 1.000000086 (epoch 1950)[3] 0.9999947 (near perihelion)[2] 1.0002 (epoch 2050)[3] |
Orbital period | Ejection trajectory (epoch 2050)[3] |
Max. orbital speed | 337.3 km/s (755,000 mph)[4] |
Inclination | 62.4°[2] |
Last perihelion | 28 November 2013[2] |
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