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The
Dumbbell Nebula
Very
Deep Exposure
Planetary
in Vulpecula
Uploaded 9/21/03
Instrument: 12.5" f/5 Home made Newtonian
Platform: Astrophysics 1200 QMD
CCD Camera: SBIG ST8i NABG with Enhanced Cooling
Guider: SBIG ST4
Exposure: (LHa)RGB = 60:20:20:40 (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, Photoshop, AIP4WIN, PW Pro, RW Debloomer.
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