SH2-227 & NGC 1857
Or slightly closer for those on mobile device:
Sh2 -227 is an emission nebula visible in the constellation Auriga. It is located within the large pentagon that constitutes the constellation, approximately 1° south of the star λ Aurigae and a short distance from the open cluster NGC 1857, seen at the top of this image. The most suitable period for its observation in the evening sky falls between the months of October and March and is considerably easier for observers located in the regions of the Earth's northern hemisphere.
This is a remote and poorly studied H II region, located about 14000 light years away on the Cygnus Arm, beyond the large Auriga OB associations. The star responsible for its ionization would be LS V +38 12, a blue main sequence star with spectral class O9V. Two sources of infrared radiation are associated with this cloud, one of which also has CO emissions.
Imaging telescopes: Takahashi FSQ130ED
Imaging cameras: ASI 2600mm
Mounts: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight & Photoshop
Filters: Astrodon Ha & OIII (3nm) . Astrodon RGB
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW3, RB Focus Gaius, RB Focus Excalibur.
Dates: 30th. Nov - 02nd. Dec 2023
Frames:
Astrodon Ha 48 x 10'
Astrodon OIII 60 x 10'
Astrodon RGB 3 x 20 x 2'
Total integration = 20 hours.
Center (RA, Dec): (80.172, 39.021)
Center (RA, hms): 05h 20m 41.357s
Center (Dec, dms): +39° 01' 15.306"
Size: 71.7 x 49.8 arcmin
Radius: 0.728 deg
Pixel scale: 1.2 arcsec/pixel
Orientation: Up is 359.7 degrees E of N
This is a remote and poorly studied H II region, located about 14000 light years away on the Cygnus Arm, beyond the large Auriga OB associations. The star responsible for its ionization would be LS V +38 12, a blue main sequence star with spectral class O9V. Two sources of infrared radiation are associated with this cloud, one of which also has CO emissions.
Imaging telescopes: Takahashi FSQ130ED
Imaging cameras: ASI 2600mm
Mounts: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight & Photoshop
Filters: Astrodon Ha & OIII (3nm) . Astrodon RGB
Accessories: Robofocus Focuser controlled by Lunatico Armadillo, ATIK EFW3, RB Focus Gaius, RB Focus Excalibur.
Dates: 30th. Nov - 02nd. Dec 2023
Frames:
Astrodon Ha 48 x 10'
Astrodon OIII 60 x 10'
Astrodon RGB 3 x 20 x 2'
Total integration = 20 hours.
Center (RA, Dec): (80.172, 39.021)
Center (RA, hms): 05h 20m 41.357s
Center (Dec, dms): +39° 01' 15.306"
Size: 71.7 x 49.8 arcmin
Radius: 0.728 deg
Pixel scale: 1.2 arcsec/pixel
Orientation: Up is 359.7 degrees E of N
Sky Map & Finding Chart
Full Field as taken with the camera
Ha, OIII & RGB in the Image:
Annotated Image
