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Simeis 22 / SH2-188 - The Dolphin Nebula in H-Alpha, 





    
        

            Frank Breslawski
Simeis 22 / SH2-188 - The Dolphin Nebula in H-Alpha

Simeis 22 / SH2-188 - The Dolphin Nebula in H-Alpha

Technical card

Resolution: 1491x1848

Dates:Sept. 30, 2018Oct. 4, 2018

Frames:Astronomik H-Alpha 6nm CCD: 28x900" -20C bin 1x1

Integration: 7.0 hours

Darks: ~50

Flats: ~10

Bias: ~200

Avg. Moon age: 22.27 days

Avg. Moon phase: 48.86%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 2472845

RA center: 22.520 degrees

DEC center: 58.479 degrees

Pixel scale: 0.929 arcsec/pixel

Orientation: 88.191 degrees

Field radius: 0.306 degrees

Locations: Home, Bergisches Land, Germany

Data source: Backyard

Description

I once read somewhere that the Dolphin is deeply imaged when the tail is closed again. I would like to say "mission completed". ;-)

Comments

Author

_Frank_
Frank Breslawski
License: Attribution-NonCommercial-ShareAlike Creative Commons
2105
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Simeis 22 / SH2-188 - The Dolphin Nebula in H-Alpha, 





    
        

            Frank Breslawski