The spiral galaxy NGC 6946 and the open star cluster NGC 6939.
Date: November 23, 2011
Constellation: Cepheus
Location: Dominion Astrophysical Observatory, Victoria, BC
Optics: TeleVue NP-127is used at f/5.2 with large field corrector
Mount: Paramount ME, guided using PhD
Camera: Hutech modified Canon EOS 5D Mark II
Exposure: 9 light frames of 180 seconds, ISO 800
Processing: Light frames calibrated with dark and flat frames in ImagesPlus. Light frames normalized and combined using MinMax Excluded. Image cropped.