NGC7538 - Emission nebula in Cassiopeia

NGC7538 - Emission nebula in Cassiopeia

Description: NGC7538 is a fairly bright emission nebula not far from Messier 52. Also known as SH2-158, 9.7 x 6 arc minutes with a lot of faint background nebulosity. Camera: SBIG ST-8XE at -10C Filter: SBIG RGB set Scope: TMB 175 Refractor Mount: Astro-Physics AP900QMD Exposure: 2 x 15 minutes blue, 3 x 15min green and 3 x 15 red. Location: Mt. Kobau B.C. Date: August 6, 2008