Sun CaK
Taken by Stefano Sello on March 7, 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:
Almost quiet sun: only region AR2297 near SE limb breaks a near quiet solar disk.
Photo details: Solarmax70 CaK solar telescope centered at 393.4 nm (K1R of the line profile for quiet chromosphere), equipped with a Lu135M CCD camera. 12:00 UT.
Photographer's website:
No URL provided.
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