IC 5146 also known as the Cocoon Nebula, Caldwell 19, or Sh 2-125, is a combination emission
and reflection nebula in Cygnus. It has an apparent size of 12 arc minutes and is located at a
distance of about 3,300 light years.
Date: Sep 5,6,7, 2010
Location: Blue Mountain Vista Observatory, New Ringgold PA
Optics: Starizona Hyperion astrograph, 12.5 inch/2529 mm focal length
Mount: Paramount ME
Camera: STL 11000
Guiding: self guided
Exposure: L 34x10min unbinned, RG 20x7 min binned 2x2, B -15x7- Total 11 hrs
Processing: Image acquisition using CCD Autopilot. Initial processing was done using Maxim DL
with subsequent processing with Photoshop.
Blue Mountain Vista Observatory New RInggold PA
IC 5146 The Cocoon Nebula