The Cocoon Nebula (IC 5146)

Posted by Dr. Bri
on Wednesday, November 17, 2010

Cocoon Nebula. Taken form the Nutwood Observatory in Bancroft Ontario Canada. Equipment used : 14 inch Astrograph SCT with an Apogee 16M and an ME Mount.  Consists of 6 hrs total exposure LRGB.

The Cocoon Nebula floats like an island within a sea of dark clouds.  It is a star forming region that contains three of the major types of nebulosities:  emission, reflection, and absorption.    These three types of gas clouds are responsible for the red, blue, and black regions shown above.  The large central star within the Cocoon has blown a hole in the nebula and is likely responsible for exciting the surrounding hydrogen to emit in Ha light. 

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