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M10 - Globular Cluster in Ophiuchus
From the author of   Welcome to the Universe in 3D
23:10 EDT Jul 11, 2015.
Starlight Express SXV-H9 on 10" RCOS at f/5.
L = 8 min, R = 6 min, G = 6 min, B = 6 min
(unguided 20-second subexposures).
Log stretch, Unsharp mask, Topaz Denoise AI.