Sun H-alpha
Taken by Stefano Sello on February 7, 2015 @
Pisa, Italy
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2015:02:07 10:20:46
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Details:
Huge solar filament on the solar disk. Using a telescope equipped with a H-alpha filter it is possible to see a very long solar filament. Adding a ruler given by Guy Buhry and correcting for the curvature, we obtain an estimate of the filament length of about 900 000 km, one of the largest Hα filament recorded in history!
Photo details: SV60 H-alpha solar telescope equipped with a SKYnyx2.2M CCD camera. 08:10 UT.
Photographer's website:
No URL provided.
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