Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Sh2-112 • Emission Nebula in HOO, 



    
        

            Douglas J Struble
Sh2-112 • Emission Nebula in HOO
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Sh2-112 • Emission Nebula in HOO

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Sh2-112 • Emission Nebula in HOO, 



    
        

            Douglas J Struble
Sh2-112 • Emission Nebula in HOO
Powered byPixInsight

Sh2-112 • Emission Nebula in HOO

Acquisition details

Dates:
July 18, 2020 ·  July 30, 2020
Frames:
Astrodon OIII 3nm: 271×120(9h 2′) (gain: 200.00) -20°C bin 1×1
Astronomik Ha 6nm 1.25'': 299×120(9h 58′) (gain: 200.00) -20°C bin 1×1
Integration:
19h
Darks:
50
Flats:
50
Bias:
250
Avg. Moon age:
18.90 days
Avg. Moon phase:
43.43%
Bortle Dark-Sky Scale:
8.00

Basic astrometry details

Astrometry.net job: 4104562

RA center: 20h34m07s.4

DEC center: +45°3509

Pixel scale: 0.679 arcsec/pixel

Orientation: 103.342 degrees

Field radius: 0.359 degrees

Resolution: 3007x2339

File size: 3.8 MB

Data source: Backyard

Description

Sh2-112 lies about 5.600 light years from Earth in Cygnus, the Swan It’s not far from the North America Nebula, but twice as far away. This whole area of Cygnus is dominated by the Milky Way and is awash in faint nebulosity, as can be seen in this image. The nebula is illuminated by BD+45 3216, the bright star at its center, which is about 30x the size of the Sun. This nebula does not seem to be a particularly popular imaging target, though I am not sure why. It is quite beautiful.

This is a HOO version I previously did in a SHO version this past July. While the nebulosity is in HOO, the stars are in SHO and color shifted to a more natural palette.

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  • Final
    Sh2-112 • Emission Nebula in HOO, 



    
        

            Douglas J Struble
    Original
    Sh2-112 • Emission Nebula in HOO, 



    
        

            Douglas J Struble
    B

B

Description: Featured in Sky & Telescope Magazine April 2021.

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Sh2-112 • Emission Nebula in HOO, 



    
        

            Douglas J Struble

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Sharpless2 Objects