The term Cis-Neptunian object is used for all sub-planetary bodies orbiting the Sun between the orbits of Jupiter and Neptune including centaurs. - the class of icy asteroids such as 2003 CO1.
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Imaged on April 17th 2009 using the 0.61m f/10 Cassegrain at the Sierra Stars Observatory. 120 seconds unfiltered image, cut down to 5 x 5 arc minutes. 2003 CO1 was at magnitude 19.5.
Martin Nicholson - Daventry, United Kingdom. The image was taken using the facilities provided by the Sierra Stars Observatory Network (SSON).
This page was last updated on April 23rd 2009.