M14 - Globular Cluster in Ophiuchus
From the author of Sizing Up The Universe
22:09 EDT Jul 16, 2015.
Starlight Express SXV-H9 on 10" RCOS at f/9.
L = 10 min, R = 8 min, G = 8 min, B = 8 min
(unguided 20-second subexposures).
Log stretch, Unsharp mask.