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

Equipment

Imaging Telescopes Or Lenses
Explore Scientific ED165CF FPL-53
Imaging Cameras
ZWO ASI1600MM-PRO
Mounts
Astro-Physics Mach 1 GTO
Filters
Astrodon OIII 3nm · Astronomik Ha 6nm 1.25''
Accessories
ZWO 8x 1.25" Filter Wheel (EFW) · QHYCCD PoleMaster · Hotech 2" SCA Self-Centering Field Flattener · MoonLite CFL 2.5" Large Format Focuser
Software
Photoshop CC · PHD2 · Sequence Generator Pro · PixInsight · SkySafari Pro
Guiding Telescopes Or Lenses
Orion 80mm Short Tube
Guiding Cameras
Starlight Xpress Lodestar x2

Acquisition details

Dates:
July 18, 2020 ·  July 30, 2020
Frames:
Astrodon OIII 3nm: 271x120" (9h 2') (gain: 200.00) -20°C bin 1x1
Astronomik Ha 6nm 1.25'': 299x120" (9h 58') (gain: 200.00) -20°C bin 1x1
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

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.

Comments

Revisions

  • 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

In these public groups

Sharpless2 Objects