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Sh2-115 & Sh2-116 Emission Nebulae in Cygnus
Sh2-115 is a faint emission nebula, included in the Sharpless catalog since 1959. It is located in Cygnus, very close to Deneb, the brightest star in that constellation.
Sh2-116, also known as Abell 71, is the nebula at the bottom of this image. Although it is also known as PK85 + 4.1. This designation was given for its appearance as a planetary nebula, but more recently it has been revealed to be a small emission nebula.
I have done the image processing in Pixinsight.
Data acquired by Jim and Linda Powell, from the Deep Sky West robotic observatory, between August 7 and October 19, 2020.
Team:
Telescope TEC 160FL (OTA # 30)
SBIG STXL-16200 Camera
Paramount ME II mount
Astrodon LRGB Tru-Balance E-Series Gen 2 Filters Set and Astrodom 5nm H-Alpha, SII and OIII Filters all 50mm.
Accessories:
Starizona Microtouch Autofocuser, Feathertouch Motorized Focuser, SBIG filter wheel STXL-FW8G, Drew buster controler.
Data:
OIII: 32x1800 "-20C bin 1x1
SII: 27x1800 "-20C bin 1x1
H-Alpha: 24x1800 "-20C bin 1x1
Blue: 17x600 "-20C bin 1x1
Green: 16x600 "-20C bin 1x1
Red: 16x600 "-20C bin 1x1
Total integration time: 48.7 hours.
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