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Sh2-112 Narrowband, 


Sh2-112 Narrowband

Sh2-112 Narrowband

Technical card

Imaging telescope or lens:Tele Vue NP 101

Imaging camera:Atik One

Mount:Orion Atlas Pro EQ Orion Atlas Pro AZ/EQ-G

Guiding telescope or lens:Tele Vue NP 101

Guiding camera:Atik GP

Filters:OIII 3nmAstrodon Ha 5mmSII 3nm

Resolution: 2560x1992

Dates:Aug. 27, 2017

Frames: 76x900"

Integration: 19.0 hours

Avg. Moon age: 5.72 days

Avg. Moon phase: 32.66% job: 1708556

RA center: 20h 33' 46"

DEC center: +45° 36' 25"

Pixel scale: 1.716 arcsec/pixel

Orientation: 175.739 degrees

Field radius: 0.773

Locations: Howling Moon Observatory, SoCal, CA, None


This is 26 Ha subs and 25 Oiii and Sii subs; all subs were 15 minutes. The palette is a mix that worked well with this data.

I had some rather severe mount issues while collecting this - my AtlasPro would stop tracking wander aimlessly for a while ... I never have figured out what was causing it, but it might be temperature related. You can read about it (and see some pics of bizarre star trails) on cloudynights, here:



License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Sh2-112 Narrowband,