This shot is a combination shot using Narrow Band filters to bring out the nebula itself with RGB data to bring colour to the stars.
NGC 281 is an Ha region about 10,000 light-years away in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes the open cluster IC 1590, the multiple star HD 5005, and several Bok globules. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.
The nebula was discovered in August 1883 by E. E. Barnard, who described it as "a large faint nebula, very diffuse."
The nebula is visible in amateur telescopes from dark sky locations.
Imaging telescopes or lenses: Takahashi FSQ106ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2
Guiding telescopes or lenses: Takahashi FS 60 CB
Guiding cameras: QHY CCD QHY 5 II
Software: PHD 2, Pleiades Astrophoto PixInsight , Sequence Generator Pro SGP
Filters: Astrodon Ha 3nm, Astrodon SII 3nm, Astrodon OIII 3nm, Astronomik RGB 2"
Accessories: Robofocus Focuser, ATIK EFW2
Resolution: 3216x2038
Dates: Oct. 22, 2015, Oct. 23, 2015, Oct. 28, 2015
Frames:
Astrodon Ha 3nm: 12x1200" bin 1x1
Astrodon OIII 3nm: 9x1200" bin 1x1
Astronomik RGB 2": 12x300" bin 1x1
Astrodon SII 3nm: 8x1200" bin 1x1
Integration: 10.7 hours
Avg. Moon age: 11.19 days
Avg. Moon phase: 78.41%
RA center: 13.182 degrees
DEC center: 56.677 degrees
Pixel scale: 1.246 arcsec/pixel
Orientation: 84.009 degrees
Field radius: 0.638 degrees
NGC 281 is an Ha region about 10,000 light-years away in the constellation of Cassiopeia and part of the Perseus Spiral Arm. It includes the open cluster IC 1590, the multiple star HD 5005, and several Bok globules. Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character.
The nebula was discovered in August 1883 by E. E. Barnard, who described it as "a large faint nebula, very diffuse."
The nebula is visible in amateur telescopes from dark sky locations.
Imaging telescopes or lenses: Takahashi FSQ106ED
Imaging cameras: QSI 6120i
Mounts: Takahashi EM 400 Temma 2
Guiding telescopes or lenses: Takahashi FS 60 CB
Guiding cameras: QHY CCD QHY 5 II
Software: PHD 2, Pleiades Astrophoto PixInsight , Sequence Generator Pro SGP
Filters: Astrodon Ha 3nm, Astrodon SII 3nm, Astrodon OIII 3nm, Astronomik RGB 2"
Accessories: Robofocus Focuser, ATIK EFW2
Resolution: 3216x2038
Dates: Oct. 22, 2015, Oct. 23, 2015, Oct. 28, 2015
Frames:
Astrodon Ha 3nm: 12x1200" bin 1x1
Astrodon OIII 3nm: 9x1200" bin 1x1
Astronomik RGB 2": 12x300" bin 1x1
Astrodon SII 3nm: 8x1200" bin 1x1
Integration: 10.7 hours
Avg. Moon age: 11.19 days
Avg. Moon phase: 78.41%
RA center: 13.182 degrees
DEC center: 56.677 degrees
Pixel scale: 1.246 arcsec/pixel
Orientation: 84.009 degrees
Field radius: 0.638 degrees