Messier 52 is an open cluster located in the constellation Cassiopeia. It is estimated to have 130 cluster stars and 30 field stars down to 14th magnitude. Image is a total of 5 hrs exposure through a 12.5” RCOS f/9 at f/6 (Astro-Physics TCC67) with a SBIG STF8300m CCD camera mounted on a Paramount ME on the nights of 22, 25, 31 Oct 2019 in Mayhill, NM (5 x 1200 seconds in RGB, respectively @ -15 degrees C; 24 darks; 128 bias; 128 flats in RGB, respectively). Processed in PixInsight 1.8.8-6 Ripley (x64).