Close to 30 hours of integration time, under one of the best skies in Europe!
IC 5146 (the Cocoon Nebula) is a reflection/emission nebula in the constellation Cygnus. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years.
(description credits: Wikipedia)
Technical card
Imaging telescope or lens:Altair Astro RC250-TT 10" RC Truss Tube
Imaging camera:ZWO ASI1600MM-Cool
Mount:Mesu 200 Mk2
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, 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
Accessories:ZWO EFW, MoonLite NiteCrawler WR30
Resolution: 2328×1760
Dates:Sept. 5, 2019, Sept. 6, 2019, Sept. 7, 2019, Sept. 23, 2019, Sept. 26, 2019
Frames:
Astrodon B Gen.2 E-series 36mm: 80×180" (gain: 75.00) -20C bin 1×1
Astrodon G Gen.2 E-series 36mm: 80×180" (gain: 75.00) -20C bin 1×1
Astrodon HA 36mm – 5nm: 20×600" (gain: 200.00) -20C bin 1×1
Astrodon L Gen.2 E-series 36mm: 280×180" (gain: 75.00) -20C bin 1×1
Astrodon R Gen.2 E-series 36mm: 80×180" (gain: 75.00) -20C bin 1×1
Integration: 29.3 hours
Avg. Moon age: 14.73 days
Avg. Moon phase: 40.69%
Astrometry.net job: 2947619
RA center: 328.369 degrees
DEC center: 47.267 degrees
Pixel scale: 1.007 arcsec/pixel
Orientation: 270.069 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/2hmHkMQ