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