Stack of 8 exposures with the Quattro median combined and with T-Shirt sky flats applied in Photoshop.
IC 5146, the Cocoon Nebula in Cygnus, at the end of the dark nebula B168. This is a stack of 10 x 8-minute exposures with the Sky-Watcher 20cm Quattro astrographic Newtonian reflector at f/4 with its coma corrector, and filter-modified Canon 5D MkII at ISO 800. Taken from home on Oct. 14, 2015.
