Comet 2010 JC81 WISE.November 6, 2011.
Combination of 5, 3 minute images. SBIG STL-1001E CCD.
20" f/6.8 cassegrain at prime focus.
Comet 2010 JC81 WISE was one of the comet discoveries of the WISE infra-red survey mission. It peaked at around 14th magnitude in September 2011, and was still above 16th magnitude in November when this image was obtained.