THE COCOON  NEBULA
(IC 5146)

Celestron Fastar 8 at prime focus f/1.95, PixCel 237.  This is an eight minute exposure consisting of four 120 second exposures Track and Accumulate, unguided with AP900 and PEM engaged.  Processed with CCDOPS v 4.03, log scaled applied. The designation NGC 5146 describes two objects; both the nebulosity and an associated open cluster of 20 stars.
 

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Celestron Fastar 8 at prime focus f/1.95, PixCel 237.  This is my original thirty image integration of 10 seconds each, unguided at -5 degrees Celsius. Post processed with CCDOPS v3.78, log scaled and sharpened.  The difference in orientation and image size is due to the placement of the camera and cropping induced by poor tracking of this image.

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