IC 5146 "Cocoon Nebula" and Barnard 168 dark nebula
This Cocoon nebula in Cygnus is the blue rimmed pink nebula on the left, trailed to the right (westward) by dark nebula B168.  This is a joint collaboration where James Foster photographed and stacked the image in Frazier Park California and Michael Stecker did the post-processing from Los Angeles.  A Sky-Watcher 250P, 10-inch f/4 Newtonian, telescope was used.
file: CocoonNeb-90min-18Sep2023RGB2-a1a.jpg

Photographic Data
telescope:
Sky-Watcher Quattro 250P, 10-inch f/4 Newtonian telescope (FL= 1,000 mm)
 

mount and guiding
Astro-Physics 1200 GTO

imaging camera:
ZWO ASI2600MC-Pro color astro-camera.  Imaged on September 17, 2023.

exposures:
300 seconds X 18 (90-minutes)

guiding:
SVBony 60 mm f/4 guide scopr (FL= 240 mm) with ZWO ASI1200Mini guide camera
 

processing
Aquired and stacked by James Foster with Maxim DL.  Post-processed in Adobe Photoshop Elements by Michael Stecker.
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photographic site:
James Foster's observatory at Frazier Park California
https://en.wikipedia.org/wiki/Frazier_Park,_California
(Bortle 4 at 5,500 feet elevation)