VdB 142 Nebula in Cepheus

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Location & Date Backyard, Abbott Observatory Sept. 30, 2006
Temperature mid 40'sF, Transparency - Good, Seeing - 4/5
Telescope Celestron C8-N 8" Reflector F/5, Prime focus, Losmandy G11 mount
Image scale 1.52 arcsec/pixel
Camera SBIG ST-2000XCM color camera
CCD temp -20C
Exposure Times 13 X 15 minutes 3.25 hours - Hydrogen Alpha
17 X 10 minutes 2.8 hours - color
Other Information Image acquisition and guiding - CCDSoft V5
Focus - Moonlite Motorfocus w/FocusMax
Orion Skyglow stacked to a Baader UV/IR for color
Astronomik 13nm Ha filter
Image Processing * Images Plus 2.75 - Calibration, Bayer Interpolate, Grading, Alignment, Sigma Clipped Average Combine, mild DDP, 2 iterations of R/L deconvolution.
* Adobe CS - Levels, Curves, Masks, Sharpening, Cropping, JPEG conversion

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© 2006 Michael A. Siniscalchi