Sun CaK
Taken by Stefano Sello on April 6, 2015 @
Pisa, Italy
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
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Date Taken: Unavailable
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Details:
Only few weak low chromospheric activity regions today on the visible solar disk. Very nice some details of chromospheric network and internetwork in the quiet chromosphere.
Photo details: Solarmax70 CaK solar telescope centered at 393.4 nm (K1R of the line profile for quiet chromosphere), equipped with a Lu130M CCD camera. 12:00 UT.
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