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Contains:  NGC 1931, IC 417, NGC 1907, The star φAur
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IC 417, NGCC 1931/Sh2-237, The Spider and the Fly, 





    
        

            Mark L Mitchell
IC 417, NGCC 1931/Sh2-237, The Spider and the Fly

IC 417, NGCC 1931/Sh2-237, The Spider and the Fly

Technical card

Resolution: 2634x2052

Dates:March 6, 2019

Frames: 52x300"

Integration: 4.3 hours

Avg. Moon age: 29.38 days

Avg. Moon phase: 0.02%

Astrometry.net job: 2577637

RA center: 82.273 degrees

DEC center: 34.490 degrees

Pixel scale: 2.762 arcsec/pixel

Orientation: 255.961 degrees

Field radius: 1.281 degrees

Locations: Location-1, Hockessin, Delaware, United States

Data source: Backyard

Description

4h 20 min of Narrowband data from 3-6-19
Processed in PixInsight through _ABE
Brought to Photoshop as TIFs
Processed as HSS (!) -> RGB, O3 tossed
Used Ha without stars as luminance layer (about 33% opacity)
Used Layer contrast á la R. Jay GaBany
Replaced color of Phi Aurigae with yellow-orange to give truer star colors - artifactual blue looks like reflection nebula component of NGC 1931

Comments

Author

markm
Mark L Mitchell
License: Attribution-NonCommercial-NoDerivs Creative Commons
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IC 417, NGCC 1931/Sh2-237, The Spider and the Fly, 





    
        

            Mark L Mitchell