The Cocoon Nebula, or IC5146 is in the constellation of Cygnus. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equavalent to a span of 15 light years. When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward (upward in this image) forming the appearance of a trail behind the Cocoon. This photo was taken with my new 12.5" Hyperion ƒ8 Astrograph. The image exposure was 2 hours and 10 minutes through RGB and luminance filters. Sky conditions were mediocre, and the humidity was approaching 50%, not usual for Arizona. Click on the image to see a larger view.