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Abell 21 - The Medusa Nebula

 

 

 

 

 

 

 

 

 

 

 

 

  Object

The Medusa Nebula (Abell 21), in Gemini

  Telescope (Photo) Celestron 11" EdgeHD OTA  @  f/7 on Losmandy G-11 Mount
  Telescope (Guiding) Orion EON 80mm ED Refractor @ f/12.5 on Losmandy G11 Mount 
  Camera (Photo) Canon 60Da DSLR Camera using ImagesPlus 5.0 Camera Control
  Camera (Guiding) SBIG ST-i w/PHD Guiding 
  Exposure Detail 22 images at 300 seconds each, ISO3200; RAW file conversion, full calibration (flat, dark, bias, flat-dark), and initial image processing using ImagesPlus 5.5; final image processing using Photoshop CS5
  Location Cincinnati Astronomical Society's Dark-Sky Site (Adams County, Ohio) (N38.876, W83.464) 
  Date 11/09/2013