Propeller Nebula
Below is what I called an interim image made with just the Ha and SII data. The OIII data was very weak and did not add much to the detail above but adding it in the blue channel sure changed the overall image colour. Remember though that there is a small amount of RGB in that top image. I am quite sure some people will prefer the bi-colour image below.
See how the different filters picked up different data from the nebula by scrolling further down the page.
See how the different filters picked up different data from the nebula by scrolling further down the page.
Commonly known as the propeller nebula the ‘propeller’ shape actually consists of two catalogued parts: DWB 111 & DWB 119.
The DWB catalog was compiled by H. R. Dickel, H. Wendker and J. H. Bieritz cataloging 193 distinct objects as part of their study of H-alpha emission nebula in the Cygnus X region of the sky.
This is part of a much larger complex known as Simeis 57 in Cygnus, discovered in the early 50’s. The distance to the nebula is not known.
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: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon Ha, SII, OIII & RGB,
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4240 x 2825
Dates: 31st May to 7th June 2019
Frames:
Astrodon Ha 28 x 20'
Astrodon SII 24 x 20'
Astrodon OIII 24 x 20'
Astrodon RGB 15 x 3' Each
Total integration = 27 hours 35 mins.
Center (RA, Dec): (304.130, 43.670)
Center (RA, hms): 20h 16m 31.241s
Center (Dec, dms): +43° 40' 10.825"
Size: 69.6 x 46.4 arcmin
Radius: 0.697 deg
Pixel scale: 0.985 arcsec/pixel
Orientation: Up is 268 degrees E of N
The DWB catalog was compiled by H. R. Dickel, H. Wendker and J. H. Bieritz cataloging 193 distinct objects as part of their study of H-alpha emission nebula in the Cygnus X region of the sky.
This is part of a much larger complex known as Simeis 57 in Cygnus, discovered in the early 50’s. The distance to the nebula is not known.
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: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor & PixInsight,
Filters: Astrodon Ha, SII, OIII & RGB,
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 4240 x 2825
Dates: 31st May to 7th June 2019
Frames:
Astrodon Ha 28 x 20'
Astrodon SII 24 x 20'
Astrodon OIII 24 x 20'
Astrodon RGB 15 x 3' Each
Total integration = 27 hours 35 mins.
Center (RA, Dec): (304.130, 43.670)
Center (RA, hms): 20h 16m 31.241s
Center (Dec, dms): +43° 40' 10.825"
Size: 69.6 x 46.4 arcmin
Radius: 0.697 deg
Pixel scale: 0.985 arcsec/pixel
Orientation: Up is 268 degrees E of N
SII, Ha & OIII in the final image:
Sky Map
Annotated Image
