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, estimates that the
comet nucleus
is 3-4 km in diameter.
http://en.wikipedia.org/wiki/Comet_Elenin
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