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M27 Dumbbell Nebula (5in f6 20Da).jpg
M27, taken Oct 8, 2007 with 5-inch Astro-Physics apo refractor at f/6 with Canon 20Da camera at ISO 400 for stack of 3 x 15 minute exposures. With 6x7 field flattener. Guided with Meade DSI/66mm guidescope and PHDGuide sofware. Some minor dec trailing.