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SH2-115 & SH2-112 (Starless)

Technical card

Resolution: 3428x4285

Dates: Sept. 7, 2017Sept. 10, 2017Sept. 13, 2017

Astrodon Ha 5nm: 129x240" (gain: 139.00) -20C bin 1x1
Astrodon OIII 3nm: 208x240" (gain: 139.00) -20C bin 1x1
Astrodon SII 3nm: 98x240" (gain: 139.00) -20C bin 1x1

Integration: 29.0 hours

Darks: ~50

Flats: ~50

Bias: ~250

Avg. Moon age: 19.18 days

Avg. Moon phase: 75.16%

Bortle Dark-Sky Scale: 6.33 job: 1761190

Locations: Backyard Red Zone Observatory, Taylor, MI, Michigan, United States


This is my first attempt at removing stars. I thought this image was fitting for this. I prefer stars in most of my work because it adds depth of field, but this particular piece had a lot of depth to begin with and I felt like I didn't loose any depth by removing the stars.



Douglas J Struble


SH2-115 & SH2-112 (Starless), 


        Douglas J Struble