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Cocoon Nebula Widefield (IC 5146)

Technical card

Imaging telescope or lens: Takahashi FSQ106EDX

Imaging camera: FLI Ml 16803

Mount: Astro-Physics Mach 1 GTO

Guiding telescope or lens: Celestron Finderscope 9x50

Guiding camera: Orion SSAG

Software: Main Sequence Software Sequence Generator ProPixInsight

Filter: Ha 5nm

Accessory: FLI CFW-4-5 50mm Square

Resolution: 3462x1860

Dates: July 3, 2014

Frames: Ha 5nm: 11x1200" -20C bin 1x1

Integration: 3.7 hours

Avg. Moon age: 5.55 days

Avg. Moon phase: 31.02% job: 311958


- Cropped to focus on the Cocoon and dark nebulosity

Revision C:
- full frame, no cropping and some slight adjustments

Looking at my first iteration I noticed that I had lost a lot of the small scale detail as I tried to bring out the dust. I decided to create a secondary image in parallel to my first by focusing more on preserving the small scale features so the dark clouds do not look like ink blotches on pieces of paper.

At some point I'll find a proper technique to enhance large scale structures without affecting the small scale details so negatively. I know that others already know how to do it, but what is the fun in discovery if I rely on someone else to do it for me :)

Taking a quick break from the main Cygnus mosaic, I thought I would head over to image another part of the region that will eventually become yet another piece of the aforementioned project.

Thoughts and criticisms welcome. It was a tough one process because of the faint emission nebulae, and the darker clouds that surround it. I'm definitely planning on adding at least another 4h worth of data to bring up the fainter signal without having to push so hard and to clean up the noise.

Thank you for stopping on by,






Cocoon Nebula Widefield (IC 5146), Hytham