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C/2010 X1
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C/2010 X1 (Elenin)
Comet Elenin as seen by the STEREO-B spacecraft on August 1st, 2011.
Discovery
Discovered by:
Leonid Elenin
0.45-m reflector (H15)
Discovery date:
December 10, 2010
Orbital characteristics A
Epoch:
March 30, 2011
(JD 2455650.5)
Aphelion:
~1037 AU
Perihelion:
0.48243 AU
Semi-major axis:
~518 AU
Eccentricity:
1.0000621
Orbital period:
~11,800 yr
Inclination:
1.839°
Last perihelion:
10 September 2011
Next perihelion:
unknown/disintegrated
Comet C/2010 X1 (Elenin) is a long-period comet discovered by Russian amateur astronomer Leonid Elenin on December 10, 2010, through remote control of the International Scientific Optical Network's robotic observatory near Mayhill, New Mexico, U.S.A. At the time of discovery, the comet had an apparent magnitude of 19.5, making it about 150,000 times fainter than can be seen with the naked eye. The discoverer, Leonid Elenin, originally estimated that the comet nucleus was 3–4 km in diameter, but more recent estimates place the pre-breakup size of the comet at 2 km. Comet Elenin started disintegrating in August 2011, and as of mid October 2011 was not visible even using large ground-based telescopes.
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Created By:
System
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