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This image was done using a 60mm refractor and a 60mm Coronado SolarMax filter, which is a narrow-pass filter around H-alpha emission line. The picture was done some years ago (probably 2003) when the sun was much more active. Hopefully we'll get some more eruptions soon!

Sylvain Chapeland, the author of this image, is a IT engineer at CERN.

 
2012-12-27 12:06:53       
Wow! I looked up a cpuloe of times but it always seemed too cloudy. I guess one doesn't need a perfectly clear sky after all. I have a friend that went to Lapland, above the arctic circle for the viewing, but there's no guarantee it would be cloud free there either.
 
2011-08-19 07:58:26       
Kudos! What a neat way of thnkiing about it.
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