From TelescopeLive: The main catalog to use to find and observe dark nebulae was created by American astronomer Edward Barnard who is more commonly known as E.E. Barnard. He was a gifted astronomical observer who catalogued many of these items in the “Barnard Catalogue of Dark Markings in the Sky” which is now known as the Barnard Catalogue. Barnard originally published this catalog in 1919 in the Astrophysical Journal, listing 182 dark objects. A later version of his catalogue published in 1927 shortly after his death listed 369 objects.
Scope: AP155EDF
Camera: Moravian G4 (16803 ccd) w Astrodon Gen II Filters
Mount: Paramount MX
15/15/15 x 10 min each of RGB
32 x 10min Luminance
Lucknow, Ontario, Canada
Sept 2023
Images acquired using CCD-Commander and TheSkyX
Reduction and all pre-processing in PixInsight.
RGB processed in PixInsight using SPCC, BlurX, NoiseX then HistogramTransformation, Curves and a masked Saturation boost.
Luminance processed in PixInsight using BlurX, NoiseX, then StarX followed by HistogramTransformation, Curves and LocalHistogramTransformation (for contrast) then the stars were restored.
LRGBCombine in PI
Additional tweaks in Photoshop.