This image of Simeis 147 is a 6 panel mosaic, consisting of 58 x 10 minute H-alpha subs (all 1xbin) taken over a 5 week period from March-April.Taken with Takahashi FSQ106 with reducer, Atik 460EX, 5nM Astrodon H-alpha filter, all on an Astro-Physics Mach-1 mount.