Sun through Coronado H-alpha filters

Updated : 27 February 2005.

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sunm10_006_-003rd1_IP_PScrop.jpg (720 kB)

  • CCD : STL11000M ABG 1x1 binning
  • Exposure time : 0.01 s
  • Date and Time : 15. Jan. 2005
  • Instrument : FSQ @ f/17.7 (SM60)
  • Focal length : 1060 mm (2x Powermate)
  • FWHM : about 0.05 nm (double stacked H-alpha filters)
  • Filters : Astronomik clear filter, 90mm and 60mm H-alpha filter
  • Image processing : MAxim V4.06 and Imageplus V2
  • Problems/comments : Further processing in Photoshop. Imaged at my backyard, Mol, Belgium

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