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NGC 7000, North America Nebula

Object : NGC 7000, North America Nebula
Coordinates/Direction : RA: 20h59m, DEC: +44o31'
Object size : 120' x 100'
Object magnitude : 4
More to know : Wikipedia: wiki/ North America Nebula

NGC 7000 2023-03-28

NGC 7000, North America Nebula, 2023
Date : 2023-03-28
Time (UT) : 22:57 to 00:08
Mount : SkyWatcher HEQ5, belt modified, low rider
Guide : QHY5 camera with 200 mm f/3.5 lens
Lens/telescope : Pentax 645 300 mm ED f/4 (medium format lens)
Corrector/Barlow : -
Field (FOV) : 6.8x4.5o (full frame) before crop
camera : Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit
camera temperature: About 6o C above surrounding temperature
Film/CCD : Raw, Cr2
Filter : none
Control system: Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux)
Exp. time : 77x30 seconds, iso1600, dithering mode
Image process tool : Siril, Gimp, Irfanview
Processing : cal dark (const), flatcrop, desaturated, color calibration
Weather : clear
Site : Sweden, Stockholm, Hagsätra. Bortle 9
Free view Az: 20o-90o, 165o-185o, La: 20o-55o
Comment : It's not many weeks left of this astronomy season. Desperately I looking fore something exciting to photograph. In Northeast very low to the horizon I see that the nebula NGC 7000 climbing up. When I start photographing it it's only 19 degrees above the horizon. But it's a very big nebula with its 120 x 100 arc min size, bright too with magnitude 4. Nebulas is almost impossible to photograph when there are heavy light pollution without narrow band filter. This photo isn't very nice, but I can take a new later when out on a dark place. This was also the first photo that I processed with desaturate tool in Siril of the over exposed stars and after that color calibrated the stars.
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