The Cocoon Nebula (IC 5146)
IC 5146 (Caldwell 19), the Cocoon Nebula, is a star forming region in the constellation Cygnus located at a distance of approximately 4000 light years. This complex nebula includes an emission nebula that shines in reddish light from the emission of Hydrogen Alpha, a reflection nebula that shines in bluish light from the reflection of stars off of dust clouds along with a young open star cluster (Collinder 470) with stars forming in the molecular cloud. An extensive dark nebula can be seen surrounding the "Cocoon," blocking background stars.
This image is a 164 minute luminance image combined with red, green and blue images (36, 40, 40 minutes) obtained on 1 and 2 September 2008. The image was obtained through a William Optics FLT110 4.3" f/7 refractor with an SXV-H9 CCD camera.
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