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IC5068 (The Forsaken Nebula)

The Forsaken Nebula in Cygnus The Forsaken Nebula in Cygnus ©2023 Frederick Steiling
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Target Information
Main Target Designations IC5068 (The Forsaken Nebula)
RA Center 20h 50m 30.939s
DEC Center 42° 23' 2.96"
Rotation -1.179° (North is up)
Field of View 43' 13.6" (E-W) x 58' 4.9" (N-S)
Pixel Scale (as posted) 0.806 arcseconds/pixel
Exposures (Panel 1 - North)
SiiHaOiiiRGB 780'/660'/920'/36'/45'/42'
Sii subframes 39 x 1200" @ 1x1
Ha subframes 33 x 1200" @ 1x1
Oiii subframes 46 x 1200" @ 1x1
R/G/B subframes 12/15/14 x 180" @ 1x1
Panel 1 Integration 41hrs 23min
Exposures (Panel 2 - South)
SiiHaOiiiRGB 820'/620'/900'/42'/45'/42'
Sii subframes 41 x 1200" @ 1x1
Ha subframes 31 x 1200" @ 1x1
Oiii subframes 45 x 1200" @ 1x1
R/G/B subframes 14/15/14 x 180" @ 1x1
Panel 2 Integration 41hrs 9min
2-panel Mosaic
Total Integration 82hrs 32min
Period of Acquisition June-October 2021
Location Animas, NM
Equipment
Imager SBIG STF-8300M
Telescope/Lens TS Optics N-AG12 12" Newtonian Astrograph @ f/4.56
Mount Mesu 200 Mk II
Guiding Apparatus OAG-8300
Guiding Camera QHY5L-II
Filter Wheel FW8-8300
Wide Filters Astrodon Gen II RGB
Narrowband Filters Astrodon Ha 5nm, Oiii 3nm, Sii 3nm
Accessories
Coma Corrector TS Optics 3" N-AGK3
Collimator Howie Glatter 650nm laser
Focusing Feather Touch True 3.0" with Focus Boss II
Software
Acquisition Sequence Generator Pro
Guiding PHD2
Processing PixInsight 1.8

There is certainly an artistic eye put to use when composing astrophotos, but sometimes the sky paints the picture for us! This portrait captures the cloudy brushstrokes of Hydrogen, Oxygen, and Sulphur outlining a door to the unknown through the constellation Cygnus. Lying about 1,600 light years away, this 2-panel mosaic covers a field nearly 1 degree in height (North-South), or about twice the size of the full moon. It's a great reminder how enormous some of these treats sit in our skies!

This is the first (and so far the only planned) mosaic I've done with the 12" telescope, and it turned out so well that I may have to consider more once I get the gear set back up. Stitching went seamlessly (literally) using PixInsight's Photometric Mosaic scripts, and this area certainly called for the effort with the entire "celestial door" barely fitting in such a field of view. The delicate wisps of obscuring dust are so unique, it's a shame this area tends to be often overlooked by the camera for the much richer North American Nebula region nearby.

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