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M101 - The Pinwheel Galaxy













  Object Spiral Galaxy, "The Pinwheel Galaxy" (M101), in Ursa Major
  Telescope (Photo) Celestron 11" EdgeHD SCT OTA  @ f/10 on  Losmandy G-11 Mount 
  Telescope (Guiding) Orion EON 80mm ED Refractor @ f/15.625 (f/6.25 w/2.5x Powermate) on Losmandy G11 Mount
  Camera (Photo) SBIG ST8300M monochrome CCD
  Camera (Guiding) Starlight Express Lodestar w/ PHD Guiding
  Exposure Detail LRGB combination:   
  Luminance: excluded-average combination of 27 images ( binned 1x1) at 600 seconds   
  Red:   excluded-average combination of 14  images (binned 2x2) at 300 seconds   
  Green:   excluded-average combination of 15 images (binned 2x2) at 300 seconds
  Blue:   excluded-average combination of 13 images (binned 2x2) at 300 seconds
RAW file conversion, full calibration (flat, dark, bias, flat-dark), and initial image processing using ImagesPlus 4.0; final image processing using Photoshop CS3
  Location Luminance: Private Property at Chiefland Astronomy Village, Florida
(N29.406, W82.860)
RGB: Private Property, Greene County, Ohio (N39.677, W83.802)
  Date Luminance:  03/26/11
RGB:  04/30/11