Image by Chris Abissi details below

 

This LRGB image of the Cocoon Nebula was taken over two nights spanning July 20 to 22. It is my third target with CCDAutopilot 3. Of course it was taken with The BRC-250, ST-10XME, CFW-10 filter wheel with Astrodon E-series filters, Finger Lakes Instruments DF2 focuser, and Optec Pyxis rotator on the MI-250 mount and Pier-Tech 3 pier from the Dark Horse Observatory in Kimberton, PA. The seeing varied from a FWHM of 3.0 to 4.95, briefly, with a mean FWHM of around 3.5 for most of the time. The weather conditions were suboptimal with intermittent thin clouds drifting by despite predictions for a clear night. This produced patchy background areas of noise in the stacked images. Total exposure was L = 150 minutes, RGB = 60 minutes each. All images were taken as 10 minute subexposures, all unbinned.
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