Calcium K images - 2011
Ca K Barr filter : 393.38 nm - FWHM = 0.3 nm
Takahashi TOA 150 mm with 65 mm diaphragm
SBIG STL 11000 M or Lumenera LW 11059 M cameras - Takahashi X1.5 ED Extender - Exposure 3 to 5 ms
20 May 2011 (3.01-50i)
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4 June 2011 (2.89-50i)
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9 September 2011 (3.00-50i)
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30 April 2011 (2.85-5i) |
5 May 2011 (2.87-5i) |
6 May 2011 (3.17-1i) |
8 May 2011 (2.68-50i) |
13 May 2011 (2.82-50i) |