Sharpless 89/90 in Cynus
with 10" f/3.9 Astrograph
Uploaded 12/1/23

 
Here
            is a new image we would like to share with you this week, the
            extremeley faint hydrogen rich area in Cygnus near Alberio known
            as Sharpless 2-89 as the large glow in the center, and Sh2-90
            is the small bright patch to the upper right. This field is so
            faint, and just to properly capture the red nebulous background
            without noise took just over 11 hours of integration time in
            a RRGB set. Technical data: 10" f/3.9, Atik 16200 CCD, from
            Payson, Az.

            
Select an image size for a larger view:

1600 x 1290


Instrument:  10" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount:  Astrophysics 1200 QMD
CCD Camera:  ATIK 16200 
Guider: ASI290  w/80mm WO Zenithstar 81 piggyback refractor
Exposure:  11 hours HaRGB
Astronomik  RGB Combine Ratio:  1: 0.95: 1.6
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 7/10
Outside Temperature:  45 F
CCD Temperature:  -30 C
Image Processing Tools: 
Maxim DL6:  Calibration, PixInsight:  All Remaining processing, Photoshop CS2: Production finishing 

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