Sun through Coronado H-alpha filters

Updated : 15 January 2006.

Click on image to get larger size image.
AGA_Average1000_SUN001-2XD-026R_RX_PS.jpg (1200 kB)

  • CCD : STL11000 ABG
  • Exposure time : 0.01 s
  • Date and Time : 15. January 2006, 12:33 UT
  • Instrument : FSQ @ f/13 (SM90)
  • Focal length : ca. 1200 mm (2x Powermate)
  • FWHM : about 0.05 nm (double stacked H-alpha filter)
  • Filters :
  • Image processing : Photoshop
  • Problems/comments : Further processing in Registax (wavelets) and Photoshop (colorized). Best image out of several graded with Imageplus V2.75. Imaged at my backyard in Mol, Belgium. Very nice loose prominence above solar limb to the upperleft

back home