Click on image for large version
Subject
IC 5146
Date
12th June 2004
Telescope or Lens
TEC APO 140
Mount
G11
Camera
ST2000XM
Filters
TT RGB, Schuler 10nm Ha
Total Exposures L 90 min R 60 min G 40 min B 40 min
Sub exposure

9 x 10 min

6 x 10 min
8 x 5 min
8 x 5 min
Binning
Luminance1 x 1 RGB 2 x 2
Field of view and resolution
Approx 41 x 31 Arcminutes. 1.56 Arcsec / Pixel
Comments  

The Cocoon Nebula.

Definitely a bit of noise in this image. I think this is due to very thin cloud for the luminance data. Still better than my previous example of the Cocoon though.