The Dumbbell Nebula in Vulpecula
with 10" f/3.9 Astrograph
Uploaded 10/09/22

 
This
            is my deepest shot of the Dumbbell nebula M27 so far, a total
            of nearly 14h integration time spread over 5 nights with Vulpecula
            at the zenith. As seen here, the faint outer extremities of this
            object far exceed what is normally recorded, it is essentially
            an hourglass shaped object with the primary wings of the shape
            on an East-West axis, and with the red hydrogen filling in the
            gaps.

            
Select an image size for a larger view:

1400 x 1200


Instrument:  10" f/3.9 Orion Astrograph Newtonian with Baader MPCC
Mount:  Astrophysics 1200 QMD
CCD Camera:  SBIG 10XME NABG with Enhanced Water Cooling
Guider: ASI120  w/80mm Vixen piggyback refractor
Exposure:  13h 45m total integration time
AstroDon RGB Combine Ratio:  1: 1.05: 1.2
Location:  Payson, Arizona, Elevation:  5150 ft.
Sky:  Seeing FWHM = 3 arcsec , Transparency 7/10  sky = Bortle 6
Outside Temperature:  65 F
CCD Temperature:  -20 C
Image Processing Tools: 
Maxim DL6:  Calibration, deblooming, stacking: PixInsight:  Curves, Deconvolution
Photoshop CC  Curves, Color Correction,  Cleanup

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