SH2-119
The above image is basically the RGB image with Narrow Band (SHO) data worked in. The below image is a Narrow Band image (HSHO) with the RGB data added to the stars only. Quite a difference in how one can portray the same data.
As a final NB image: I like this slight crop and 90° rotation....(below) - updated Apr '23
Sh2-119, or Sharpless 119, is a large complex of emission nebulosity in Cygnus constellation, about 2 degrees east of the North America Nebula. It is located just around 68 Cygni, a quite bright star of magnitude 5. The nebula was catalogued by astronomer S. Sharpless in his famous "Catalogue of HII Regions", published in 1959. Sharpless described it as a large (it has an apparent diameter of about 2 degrees) and bright nebula. The nebula is crossed by several areas of dark dust, especially in the southern part.
Imaging telescope: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: Tak QE 0.73x
Software: PHD 2, Astro Pixel Processer, PixInsight , Sequence Generator Pro SGP
Filters: Astrodon SII, Ha, OIII & Astrodon RGB
Accessories: ATIK EFW3
Original Resolution: 4521 x 3626
Dates: Jun 23 - Jul 06, 2021
Frames:
Astrodon Ha: 30 x 600"
Astrodon SII: 30 x 600"
Astrodon OIII: 30 x 600"
Astrodon RGB: 3 x 20 x 180"
Integration: 18 Hours.
Center (RA, Dec): (319.734, 43.660)
Center (RA, hms): 21h 18m 56.113s
Center (Dec, dms): +43° 39' 36.856"
Size: 3.03 x 2.52 deg
Radius: 1.971 deg
Pixel scale: 2.6 arcsec/pixel
Orientation: Up is 360 degrees E of N
Imaging telescope: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: Tak QE 0.73x
Software: PHD 2, Astro Pixel Processer, PixInsight , Sequence Generator Pro SGP
Filters: Astrodon SII, Ha, OIII & Astrodon RGB
Accessories: ATIK EFW3
Original Resolution: 4521 x 3626
Dates: Jun 23 - Jul 06, 2021
Frames:
Astrodon Ha: 30 x 600"
Astrodon SII: 30 x 600"
Astrodon OIII: 30 x 600"
Astrodon RGB: 3 x 20 x 180"
Integration: 18 Hours.
Center (RA, Dec): (319.734, 43.660)
Center (RA, hms): 21h 18m 56.113s
Center (Dec, dms): +43° 39' 36.856"
Size: 3.03 x 2.52 deg
Radius: 1.971 deg
Pixel scale: 2.6 arcsec/pixel
Orientation: Up is 360 degrees E of N
Sky Map
SII, Ha & OIII in the image:
The 3 hours of RGB at the heart of the final image:
Annotated Image
