Sh 2-108 is sometimes called the Gamma Cygni nebula because of the foreground appearance of the F8Iab supergiant (also called Sadr). In fact this nebula lies far beyond Gamma Cygni in the depths of the Cygnus X complex of star formation regions.
Technical card
Imaging telescope or lens:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo
Imaging camera:ZWO ASI1600MM-Cool
Mount:Astro-Physics Mach-1 GTO CP4
Guiding telescope or lens:Celestron OAG Deluxe
Guiding camera:QHYCCD QHY5III174
Focal reducer:Riccardi Reducer/Flattener 0.75x
Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight
Filters:Astrodon HA 36mm – 5nm, Astrodon S-II 36mm – 5nm, Astrodon O-III 36mm – 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 3520×4656
Dates: Aug. 5, 2018, Aug. 7, 2018
Frames:
Astrodon B Gen.2 E-series 36mm: 12×5″ (gain: 200.00) -20C bin 1×1
Astrodon G Gen.2 E-series 36mm: 12×5″ (gain: 200.00) -20C bin 1×1
Astrodon HA 36mm – 5nm: 20×300″ (gain: 200.00) -20C bin 1×1
Astrodon O-III 36mm – 5nm: 11×300″ (gain: 200.00) -20C bin 1×1
Astrodon R Gen.2 E-series 36mm: 12×5″ (gain: 200.00) -20C bin 1×1
Astrodon S-II 36mm – 5nm: 10×300″ (gain: 200.00) -20C bin 1×1
Integration: 3.5 hours
Avg. Moon age: 23.96 days
Avg. Moon phase: 31.65%
Astrometry.net job: 2221080
RA center: 306.812 degrees
DEC center: 40.076 degrees
Pixel scale: 1.472 arcsec/pixel
Orientation: 314.063 degrees
Field radius: 1.193 degrees
Locations: Berga Resort, Berga, Barcelona, Spain
Data source: Backyard
via Flickr https://flic.kr/p/2auXwxF