www.astrobin.com/363557/

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

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