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103P/Hartley

This is an image of 103P/Hartley taken on the night of October 16, 2010.  Hartley is gliding through a dim star field in the constellation of Perseus.  From a dark sky, the comet's coma was estimated to be nearly one degree in diameter.  In this view from my backyard observatory, the coma is around one half of a degree in diameter.  Also seen in the image is a short, subtle tail that points to the lower right of the frame.


09/23/2011