File:Comet_ISON_(C-2012_S1)_by_TRAPPIST_on_2013-11-15.jpg · Wikimedia Commons · See Wikimedia Commons
C/2012 S1
Sign in to saveAlso known as Comet ISON
comet discovered in 2012, with a close approach to Earth in December 2013
Key facts
- Discovered by
- Vitaly Nevsky , Artyom Novichonok
- Discovery site
- ISON –Kislovodsk ( D00 )
- Discovery date
- 21 September 2012
- Epoch
- 14 December 2013 ( JD 2456640.5)
- Observation arc
- 2.15 years
- Number of observations
- 6,682
- Orbit type
- Oort cloud
- Perihelion
- 0.01244 AU (2.68 R ☉ )
- Eccentricity
- 1.000000086 (epoch 1950) , 0.9999947 (near perihelion) , 1.0002 (epoch 2050)
- Orbital period
- Ejection trajectory (epoch 2050)
- Max orbital speed
- 337.3 km/s (755,000 mph; 1.214 million km/h; 209.6 mi/s)
- Inclination
- 62.4°
- Last perihelion
- 28 November 2013
- Dimensions
- 0.6–1.4 km (0.37–0.87 mi)
- Apparent magnitude
- –2.0, (2013 apparition)
via Wikipedia infobox
Wikidata facts
- Image
- A Unique Hubble View of Comet ISON.jpg
Show 13 more facts
- Commons category
- C/2012 S1
- time of discovery or invention
- 2012-09-21
- orbital eccentricity
- 1.000005095690719
- periapsis
- 0.0124667131396643
- longitude of ascending node
- 295.6865418045648
- orbital inclination
- 62.16289397901024
- argument of periapsis
- 345.5411989420559
- periapsis date (DEPRECATED)
- 2013-00-00
- absolute magnitude
- 10.2
- provisional designation
- C/2012 S1
- mean anomaly
- -0.001724780901920006
- semi-major axis of an orbit
- -2446.520761814393
- time of periapsis
- 2456625.2645302867
Sources (3)
via Wikidata · CC0
~19 min read
Article
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).
History
Gallery (6)
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