M51
Whirlpool Galaxy in Canes Venatici

Click image for a larger view

Location & Date Backyard, Abbott Observatory May 17, 18, 20, 2006
Temperature mid 50's F, Transparency - Very Good, Seeing - 4/5
Telescope Celestron C8-N OTA on a Losmandy G11 mount
8" Reflector F/5, Prime Focus, Image scale 1.52 arcsec/pixel
Camera SBIG ST-2000XCM
CCD temp -25C
Exposure Times 46 x 7 min. - 5.3 hours
Other Information Guiding - Internal TC11 guider
Guiding program - CCDSoft V5
Baader MPCC Coma Corrector with Orion Skyglow LPR filter
Image Processing * Images Plus 2.75 -
Calibration, Bayer Interpolate, Grading (used only A grade), Alignment, Sigma Clipped Average, mild DDP, R/L deconvolution on overall image, Adaptive R/L deconvolution on spiral arms.
* Adobe CS - Levels, Curves, Masks, Sharpening, RGB balance, Cropping, JPEG conversion

Close

© 2007 Michael A. Siniscalchi