Owl Nebula in Ursa Major

Click image for a larger view

Location & Date Backyard, Abbott Observatory May 1 & 5, 2007
Temperature 40'sF, Transparency - Fair, Seeing - 4/5
Telescope TMB 130SS Refractor, F/7 on a Losmandy G11, Prime Focus, Image scale 1.68 arcsec/pixel
Camera SBIG ST-2000XM monochrome camera w/CFW8 filter wheel
Custom Scientific LRGB filters
Astronomik 13nm Ha filter CCD temp -20C
Exposure Times (Ha) 8 X 15 min 1X1, (L) 6X10m 1X1 , (R) 3X10m, (G) 4X10m, (B) 5X10m 2X2
Other Information Image acquisition and guiding - CCDSoft V5
Focus - Moonlite Motorfocus w/FocusMax
Image Processing * Images Plus 2.75 - Calibration, Grading, Alignment, Median Combine, mild DDP, 2 iterations of R/L deconvolution, RGB combine.
* Adobe CS - Ha blend into R channel, Lum blend, Levels, Curves, Masks, Sharpening, Cropping, JPEG conversion


© 2007 Michael A. Siniscalchi