Sh2-119 in Cygnus

Click on the image for a high res version. MOUSE OVER for H-alpha only. Look also to the H-alpha only hires.

Sh2-119 is a faint nebula only 3° East of the North America nebula. In the past I've imaged this nebula with half of the focal length and a DSLR, see here.
image is an Ha-RGB composition, with most of the exposure focused on H-alpha emission (8h30min) and only a few RGB (2h10min). Be sure to look not only to the color version but also to the black and white Ha only version.

Technical Data
Optics TEC 140
Focal Length
1011 mm
Focal Ratio f/7.2
Exposure Time Total 10 h 40 min, composed of Ha 8 h 30 min, RGB 40:40:50 min (single exp of 30 min for Ha, 10 min for RGB)
CCD SBIG STL-11000M @-30°C
Location Colle dell'Agnello (CN, Italian Alps) at 2700 m height
28-29 August 2014 (two nights)
Mount Gemini G-41
Tracking Lodestar on an 80mm f/5 refractor
Temperature and humidity T= +7 °C, RH=80%
Sky brightness at zenith (with SQM-L) 21.4 mag/arcsec^2
Notes Some veils and wind.

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