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The Bubble Nebula In H-Alpha

 

 

 

 

 

 

 

 

 

 

 

 

  Object The Bubble Nebula (NGC7635), in Cassiopeia
  Telescope (Photo) Celestron 11" EdgeHD SCT OTA w/ Optec-Lepus f/6.2 Focal Reducer on Losmandy G11 Mount
  Telescope (Guiding) Orion EON 80mm ED Refractor @ f/6.25 on Losmandy G11 Mount
  Camera (Photo) SBIG ST-8300M (Monochrome) w/ Lumicon Hydrogen-Alpha filter
  Camera (Guiding) Meade DSI Pro III w/ PHD Guiding
  Exposure Detail Excluded-average combination of 19 images at 300 seconds each (captured using ImagesPlus 3.83a), full calibration (bias, dark, flat, flat-dark), and initial image processing using ImagesPlus 3.82; final image processing using Photoshop CS3
  Location Cincinnati Astronomical Society's Dark-Sky Site (Adams County, Ohio) (N38.876, W83.464) 
  Date 08/28/10