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NGC 6820-23 (4in f4.5).jpg
Nebula (NGC 6820) and cluster (NGC 6823) in Vulpecula. Taken Aug 1, 2005 with 4inch Astro-Physics Traveler at f/4.5 with Canon 20Da camera at ISO800. Additive stack of two 8-minute exposures to boost nebula brightness, plus average stack (Normal @ 50%) of two other exposures to smooth background noise.