Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 7822  ·  NGC7822  ·  Sh2-171
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NGC 7822 / Sh2-171 - Nebula in Cepheus, 


            Yannick Akar
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NGC 7822 / Sh2-171 - Nebula in Cepheus

Imaging telescopes or lenses: Celestron Rowe-Ackermann Schmidt Astrograph 8"

Imaging cameras: ZWO ASI 1600MM PRO

Mounts: iOptron CEM60

Guiding telescopes or lenses: Omegon Microspeed Guide Scope 60mm

Guiding cameras: ZWO AS120MM

Software: Adobe Phosotshop CC  ·  SharpCap Pro SharpCap Imaging Capture Software  ·  Open Guiding PHD 2.6.2  ·  PIXINSIGHT 1.8  ·  Seqence Generator Pro

Filters: ZWO B 1.25"

Accessory: Starizona Filter Slider  ·  Celestron Focus Motor for SCT

Dates:Dec. 3, 2019Dec. 4, 2019Dec. 29, 2019Dec. 30, 2019

Baader f/2 Highspeed 2" H-Alpha Filter: 377x100" (gain: 70.00) -15C bin 1x1
Baader f/2 Highspeed 2" OIII Filter: 173x100" (gain: 70.00) -15C bin 1x1
Baader f/2 Highspeed 2" SII Filter: 213x100" (gain: 70.00) -15C bin 1x1

Integration: 21.2 hours

Darks: ~50

Flats: ~50

Flat darks: ~50

Avg. Moon age: 5.38 days

Avg. Moon phase: 30.81%

Bortle Dark-Sky Scale: 8.00

Astrometry.net job: 3212080

RA center: 0h 3' 44"

DEC center: +67° 8' 23"

Pixel scale: 1.964 arcsec/pixel

Orientation: -2.923 degrees

Field radius: 1.490 degrees

Resolution: 4395x3240

Locations: Home Garden (Est. Sky Quality: 18.77), Mannheim, Baden-Württemberg, Germany

Data source: Backyard


Much dust in this region, it was really hard (for me) to not oversharpen the fine details. Again I went with keeping the greens in the outer nebulosity and using Color Masks in Pixinsight to carefully mask the wanted regions. Mapping the colors with Pixelmath was a straight 100% SHO combination.

Hope you like it :-)


Sky plot

Sky plot


NGC 7822 / Sh2-171 - Nebula in Cepheus, 


            Yannick Akar