Cocoon Nebula

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.


All images © Mel Martin 2017     Contact Me