Sh2-112 is a visibly emitting nebula in the constellation of Cygnus.

It is located in the northern part of the constellation, about 1.5 ° to WNW of the brilliant star Deneb.

It is a circular H II region of apparent size of about 15′, crossed by a dark band on its western side oriented in a north-south direction. It is believed that the star responsible for its excitation is BD+45 3216; estimates of the distance of this star provide a value of 1740 parsec (about 5670 light years), which would place so Sh2-112 in a region of the Orion Arm particularly rich and physically very close to the great nebulous system of Cygnus X.

Translated with www.DeepL.com/Translator

(credits Italina wiki: it.wikipedia.org/wiki/Sh2-112 )

Technical card
Imaging telescope or lens:Altair Astro RC250-TT 10″ RC Truss Tube

Imaging camera:ZWO ASI1600MM-Cool

Mounts:Mesu 200 Mk2, Astro-Physics Mach-1 GTO CP4

Guiding telescope or lens:Celestron OAG Deluxe

Guiding camera:ZWO ASI174 Mini

Focal reducer:Riccardi Reducer/Flattener 0.75x

Software:Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight

Filters:Astrodon L Gen.2 E-series 36mm, Astrodon HA 36mm – 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm, Astrodon S-II 36mm – 5nm, Astrodon O-III 36mm – 5nm

Accessories:ZWO EFW, MoonLite NiteCrawler WR30

Resolution: 2328×1760

Dates:July 7, 2019, July 21, 2019, Aug. 30, 2019, Aug. 31, 2019

Frames:
Astrodon B Gen.2 E-series 36mm: 35×30″ (gain: 75.00) bin 1×1
Astrodon G Gen.2 E-series 36mm: 35×30″ (gain: 75.00) -20C bin 1×1
Astrodon HA 36mm – 5nm: 148×600″ (gain: 200.00) -20C bin 1×1
Astrodon O-III 36mm – 5nm: 30×600″ (gain: 200.00) -20C bin 1×1
Astrodon R Gen.2 E-series 36mm: 35×30″ (gain: 75.00) -20C bin 1×1
Astrodon S-II 36mm – 5nm: 42×600″ (gain: 200.00) -20C bin 1×1

Integration: 37.5 hours

Avg. Moon age: 6.39 days

Avg. Moon phase: 27.92%

Astrometry.net job: 2916861

RA center: 308.507 degrees

DEC center: 45.642 degrees

Pixel scale: 1.007 arcsec/pixel

Orientation: 90.074 degrees

Field radius: 0.408 degrees

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

via Flickr https://flic.kr/p/2hfgjme

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