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(Updated Dec. 2017)
This is a large region of nebulosity (mostly hydrogen) around the star Sadr in the constellation Cygnus. From Wa-chur-ed Observatory in June of 2016. As is usual for this observatory, this is a narrowband image, processed to yield a false-color image in which the yellow represents S-2 and the blue represents O-3. Both colors are then modulated by the brightness of the H-a channel.
The bright star near the center is Sadr, which is the central star in the constellation Cygnus.
Scope: AT111EDT at f/5.7
Mount: AP Mach1
Camera: QSI 683 at –20C
Exposure: 13 x 900 seconds H-a, 10 x 900 seconds O-3, 8 x 900 seconds S-2 (7 hrs 45 mins total)