There are few regions in the sky which show the dark "elephant trunk" features shown in this image. Spanning the entire 30 arcminute field shown here, this huge object is centered around the open cluster NGC6823, and I've oriented the field with north to the right as to contain the entire nebula. Instrument: 12.5" f/5 Home made Newtonian Platform: Astrophysics 1200 QMD CCD Camera: SBIG ST8i NABG with Enhanced Cooling Guider: SBIG ST4 Exposure: RRGB = 120:20:20:40 (RGB Binned 2x2) RGB Combine Ratio: 1: .8: 1.2 Filters: RGB Tricolor Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing FWHM = 4.5 arcsec (Maxim DL - 10min subframe), Transparency 7/10 Outside Temperature: 15 C CCD Temperature: -20 C Processing Tools: Maxim DL, RG Sigma, Photoshop, AIP4WIN, PW Pro, RW Debloomer.
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