(NGC 7293)
Celestron Fastar 8 at f/1.95, PixCel 237.
This 40 minute exposure consists of a 600 second (five by 120 seconds Track
and Accumulate) luminance file, and three 600 second (also five by 120
seconds Track and Accumulate) RGB files. In a new procedure suggested
by Larry Denmark, each RGB component was co-added with itself ten times
before being merged into the raw RGB file. I am experimenting with
this procedure to increase color signal. As you can see, this does
seem to increase the overall color saturation when compared with the un-co-added
image below. Unguided at -12.39 degrees Celsius. Post processed
with CCDOPS v4.00, and combined in Adobe Photoshop. Needs to be flat
fielded, but eh....
The original, un-co-added image file.