Sun in h-alpha/calcium-H (spectroheliogram)
Taken by Richard Schrantz on May 12, 2024 @
Nicholasville, KY USA
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Here are two spectroheliogram images of the sun today in h-alpha and calcium-H. Say bye-bye to sunspot 3664. Make sure to view them at full resolution! 102mm f/7 SHG, ASI183mm camera, calcium image stopped to 72mm.
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