Hemisphere:  Northern  ·  Contains:  Sh2-112
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Sh2-112, HOO, 


            Stephen Garretson
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Sh2-112, HOO

Imaging telescopes or lenses: Dual William Optics FLT 132 Triplet f/7 APOs

Imaging cameras: Dual ASI ZWO 183 MM Pros [cooled]

Mounts: Paramount MX+

Guiding telescopes or lenses: William Optics ZenithStar 61 APO f/5.9

Guiding cameras: FLI Microline CCD 16200 Monochrome Grade 1 Sensor

Software: SGP  ·  Software Bisque TheSky X  ·  PHD2  ·  Adobe Systems Inc. Photoshop CS4  ·  PixInsight 1.8 Ripley PixInsight

Filters: Baader OIII 8.5nm 36mm OIII  ·  Baader 7nm Ha 36mm  ·  Baader Ha 3.5nm, 36mm  ·  Baader OIII 4.5nm, 36mm

Accessory: JTD Dual Rig Alignment Saddle

Dates:Oct. 8, 2019Oct. 12, 2019Oct. 13, 2019

Baader 7nm Ha 36mm: 12x300" (gain: 111.00) -15C bin 1x1
Baader 7nm Ha 36mm: 39x300" (gain: 111.00) -20C bin 1x1
Baader Ha 3.5nm, 36mm: 12x300" (gain: 111.00) -15C bin 1x1
Baader Ha 3.5nm, 36mm: 38x300" (gain: 111.00) -20C bin 1x1
Baader OIII 4.5nm, 36mm: 50x300" (gain: 111.00) -20C bin 1x1
Baader OIII 8.5nm 36mm OIII: 48x300" (gain: 111.00) -20C bin 1x1

Integration: 16.6 hours

Darks: ~20

Flats: ~40

Flat darks: ~20

Avg. Moon age: 12.62 days

Avg. Moon phase: 91.32%

Bortle Dark-Sky Scale: 6.00

Astrometry.net job: 2985731

RA center: 20h 34' 10"

DEC center: +45° 38' 38"

Pixel scale: 0.814 arcsec/pixel

Orientation: -87.864 degrees

Field radius: 0.312 degrees

Resolution: 2177x1705

Locations: Beevo Dome [home observatory], Louisville, CO, United States

Data source: Backyard


Here is the Sharpless object, Sh2-112, a small bright nebua in Cygnus, shown in HOO. [image is cropped as the terget is ~9x7 arcminutes.]



Stephen Garretson
License: None (All rights reserved)


  • Sh2-112, HOO, 


            Stephen Garretson
  • Final
    Sh2-112, HOO, 


            Stephen Garretson

Sky plot

Sky plot


Sh2-112, HOO, 


            Stephen Garretson