NGC 7822 is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800–1000 pc distant,[5][6] with the younger components aged no more than a few million years.[5][6] The complex also includes one of the hottest stars discovered within 1 kpc of the Sun, namely BD+66 1673, which is an eclipsing binary system consisting of an O5V that exhibits a surface temperature of nearly 45,000 K and a luminosity about 100,000 times that of the Sun.[5] The star is one of the primary sources illuminating the nebula and shaping the complex’s famed pillars of creation-type formations, the elephant
Equipment
- Imaging Telescopes Or Lenses : William Optics 81GT IV
- Imaging Cameras : ZWO ASI 6200 MM Pro
- Mounts : Celestron Advanced VX Goto GEM Celestron AVX
- Filters : ZWO SII 7nm 2″ · ZWO OIII 7nm 2″ · ZWO H-alpha 7nm 2″
- Software Adobe Photoshop 2021 · PixInsight 1.8 Ripley PinInsight 1.8.8
- Guiding Telescopes Or Lenses William Optics RedCat 51 Petzval APO Redcat 51
- Guiding Cameras ZWO ASI522mc-pro color ZWO
Acquisition details
- Dates: Jan. 9, 2022 · Jan. 14, 2022
- Frames:
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ZWO H-alpha 7nm 2″: 62×300″ (5h 10′) (gain: 135.00) -15C bin 1×1
ZWO OIII 7nm 2″: 85×300″ (7h 5′) (gain: 135.00) -15C bin 1×1
ZWO SII 7nm 2″: 57×300″ (4h 45′) (gain: 135.00) -15C bin 1×1 - Integration: 17h
Darks: 20 - Flats: 20
- Bias: 50
- Avg. Moon age: 9.37 days
- Avg. Moon phase: 68.23%
RA center: 23h57m56s.54
DEC center: +67°25′32″.10
Pixel scale: 2.013 arcsec/pixel
Orientation: 6.750 degrees
Field radius: 2.362 degrees
WCS transformation: thin plate spline
More info:Open
Resolution: 7096×4574
Locations: Gamaholjad, Fareham, United Kingdom
Data source: Backyard