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Contains: 
SH2-112 - A Cygnus Nebula, 





    
        

            Kevin Morefield

SH2-112 - A Cygnus Nebula

Technical card

Imaging telescope or lens:Planewave CDK14

Imaging camera:SBIG STX 16803

Mount:Paramount ME II

Guiding telescope or lens:Planewave CDK14

Guiding camera:QHYCCD QHY174

Software:Adobe Photoship CCCCDWare CCDStack 2CCDWare CCDAutoPilot 5

Filters:Astrodon OIII 3 nmAstrodon Ha 5 nmAstrodon SII 3 nm

Resolution: 3104x2294

Dates:Sept. 17, 2018

Frames:
Astrodon Ha 5 nm: 24x1200" -20C bin 1x1
Astrodon OIII 3 nm: 33x1200" -20C bin 1x1
Astrodon SII 3 nm: 29x1200" -20C bin 1x1

Integration: 28.7 hours

Darks: ~20

Flats: ~20

Bias: ~20

Avg. Moon age: 7.86 days

Avg. Moon phase: 55.03%

Bortle Dark-Sky Scale: 3.00

Data source: Own remote observatory

Remote source: Sierra Remote Observatories

Description

This is Sharpless 112, yet another nebula in Cygnus. I've shot this in SHO but the blend used is 90/10 SII/Ha for Red, SII/OIII for Green, and OIII for Blue. Luminance is all Ha.

The surface brightness is relatively low compared to other Nebulae in Cygnus. 28.66 hours of 20 minute subs were used. Ha 24, OIII 33, SII 29. Planewave CDK14 and SBIG STX 16803.

Not much info out there on this one. I've read conflicting commentary about with the bright star is part of the nebula or unrelated.

Comments

Author

morefield
Kevin Morefield
License: None (All rights reserved)
1902
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Histogram

SH2-112 - A Cygnus Nebula, 





    
        

            Kevin Morefield