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M101 / M102 - The Pinwheel Galaxy

 

 

 

 

 

 

 

 

 

 

 

 

  Object Spiral Galaxy “The Pinwheel Galaxy” (M101), in Ursa Major
  Telescope (Photo) Celestron 8" SCT OTA @ f/6.3 on Losmandy G11 Mount
  Telescope (Guiding) Televue 85mm refractor @ f/5.6 on Losmandy G11 Mount
  Camera (Photo) Canon 20Da DSLR
  Camera (Guiding) Meade DSI Pro II w/PHD Guiding
  Exposure Detail Excluded-Average combination of 20 images at 300 seconds each, ISO1600; RAW file conversion, full calibration (bias, flat, dark, and flat dark), and initial image processing using ImagesPlus 3.75; final image processing using Photoshop CS3
  Location Private Property at Chiefland Astronomy Village, Florida
(N29.406, W82.860)
  Date 03/21/09
  Comments M102 is the same object as M101, which occurred through an error in the original Messier cataloging