Sun through Coronado H-alpha filters

Updated : 25 March 2005.

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sun_06_32xd1-regis_wvaeletsR_G_flatred_MX_PS2.jpg (1000 kB)

  • CCD : STL11000M ABG 1x1 binning
  • Exposure time : 0.06 s
  • Date and Time : 23. Mar. 2005, 13:00 UT
  • Instrument : FSQ @ f/35 (SM60)
  • Focal length : ca. 2100 mm (2x Powermate + 1.6 Antares Barlow)
  • FWHM : about 0.05 nm (double stacked H-alpha filters)
  • Filters : Astronomik red filter, 90mm and 60mm H-alpha filter
  • Image processing : MAxim V4.06 (Kernel and FFT filters), Imageplus V2 (grading)
  • Problems/comments : Further processing in Photoshop (levels, colorized). Imaged at my backyard, Mol, Belgium.

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