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M52 and NGC 7635 (105mm 5DII).jpg
M52 open cluster in Cassiopeia and NGC 7635, Bubble Nebula. Taken Nov 2, 2010 with 105mm A&M apo refractor at f/5 with Borg .85x flattener/reducer and Canon 5DMkII at ISO 800 for stack of 5 x 13 minute exposures, Mean combined. Used Celestron CGEM mount and Celestron NexGuide on William Optics 66mm guidescope. Some trailing around the guidestar at bottom, with guidestar at top of frame.