Hemisphere:  Northern  ·  Contains:  Sh2-112
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SH2-112 SHO with RGB stars, 


            Phil Brewer
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SH2-112 SHO with RGB stars

Imaging telescopes or lenses: Teleskop-Service ONTC 8" f/4 Newton

Imaging cameras: QSI 683wsg-8

Mounts: Orion Atlas AZ/EQ Pro

Guiding telescopes or lenses: Teleskop-Service ONTC 8" f/4 Newton

Guiding cameras: QHYCCD QHY5L-II mono

Focal reducers: GPU Optics f4 Aplanatic Coma Corrector

Software: Seqence Generator Pro  ·  PixInsight

Filters: Astrodon 3nm Ha  ·  Astrodon 3nm OIII  ·  Astrodon E-Series Green filter  ·  Astrodon E-Series Blue filter  ·  Astrodon E-Series Red filter

Accessory: Moonlite Model CR Newtonian Focuser

Dates:May 4, 2020May 7, 2020May 13, 2020May 30, 2020May 31, 2020June 6, 2020

Astrodon 3nm Ha: 37x600" bin 1x1
Astrodon 3nm OIII: 36x600" bin 1x1
Astrodon 3nm SII: 24x600" bin 1x1
Astrodon E-Series Blue filter: 23x300" bin 1x1
Astrodon E-Series Green filter: 22x300" bin 1x1
Astrodon E-Series Red filter: 25x300" bin 1x1

Integration: 22.0 hours

Avg. Moon age: 13.24 days

Avg. Moon phase: 77.84%

Astrometry.net job: 3586673

RA center: 20h 33' 59"

DEC center: +45° 38' 27"

Pixel scale: 1.391 arcsec/pixel

Orientation: 0.738 degrees

Field radius: 0.781 degrees

Resolution: 3246x2409

Locations: Home Backyard, Ida, Michigan, United States

Data source: Backyard


A little frustrated with this target. I was hoping the OIII would bring out more blue in the core, but my data just doesn't show it. Also, my collimation appears to have been off and there are some pretty ugly stars in the corners. But I'm really happy with the way the RGB star color came through and I think my noise reduction was very subtle and the resulting image looks better for it.



Phil Brewer
License: Attribution-NonCommercial Creative Commons


  • SH2-112 SHO with RGB stars, 


            Phil Brewer
  • Final
    SH2-112 SHO with RGB stars, 


            Phil Brewer


Description: Added SII data and converted from HOO to SHO

Sky plot

Sky plot


SH2-112 SHO with RGB stars, 


            Phil Brewer

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