Above is a new rendition: June 2022. (Click on image to enlarge)
SH2-112
Sh2 -112 is a visible emission nebula in the constellation Cygnus .
It is located in the northern part of the constellation, about 1.5 ° to WNW of the bright star Deneb ; the most suitable period for its observation in the evening sky falls between the months of July and December and is more suited for observers located in the regions of the terrestrial northern hemisphere .
It is a circular H II region of apparent size of about 15 ', crossed by a dark band on its western side oriented north-south. The star responsible for its excitation is believed to be BD + 45 3216, a double blue star of spectral class O8V and an apparent magnitude of 9.18; Estimates on the distance of this star provide a value of 1740 parsec (about 5670 light years ), which would place Sh2-112 in a particularly rich region of the Orion Arm and physically very close to the great nebulous system of Cygnus X.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: Tak QE 0.73x
Software: PHD 2, Pleiades Astrophoto PixInsight , Sequence Generator Pro SGP (for capture)
Filters: Astrodon Ha, SII, OIII.
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 2848 x 1960
Dates: 16th Oct - 19th Oct '20
Frames:
Astrodon Ha 36 x 10'
Astrodon SII 24 x 10'
Astrodon OIII 24 x 10'
Total Time: 14 Hours
Center (RA, Dec): (308.524, 45.568)
Center (RA, hms): 20h 34m 05.771s
Center (Dec, dms): +45° 34' 04.829"
Size: 63.7 x 43.9 arcmin
Radius: 0.645 deg
Pixel scale: 1.34 arcsec/pixel
Orientation: Up is 179 degrees E of N
It is located in the northern part of the constellation, about 1.5 ° to WNW of the bright star Deneb ; the most suitable period for its observation in the evening sky falls between the months of July and December and is more suited for observers located in the regions of the terrestrial northern hemisphere .
It is a circular H II region of apparent size of about 15 ', crossed by a dark band on its western side oriented north-south. The star responsible for its excitation is believed to be BD + 45 3216, a double blue star of spectral class O8V and an apparent magnitude of 9.18; Estimates on the distance of this star provide a value of 1740 parsec (about 5670 light years ), which would place Sh2-112 in a particularly rich region of the Orion Arm and physically very close to the great nebulous system of Cygnus X.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: Tak QE 0.73x
Software: PHD 2, Pleiades Astrophoto PixInsight , Sequence Generator Pro SGP (for capture)
Filters: Astrodon Ha, SII, OIII.
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 2848 x 1960
Dates: 16th Oct - 19th Oct '20
Frames:
Astrodon Ha 36 x 10'
Astrodon SII 24 x 10'
Astrodon OIII 24 x 10'
Total Time: 14 Hours
Center (RA, Dec): (308.524, 45.568)
Center (RA, hms): 20h 34m 05.771s
Center (Dec, dms): +45° 34' 04.829"
Size: 63.7 x 43.9 arcmin
Radius: 0.645 deg
Pixel scale: 1.34 arcsec/pixel
Orientation: Up is 179 degrees E of N
Sky Map
Annotated Image
