Sun in h-alpha/calcium-K (Spectroheliogram)
Taken by Richard Schrantz on May 12, 2026 @
Nicholasville, Kentucky, USA
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Details:
Here is the sun from this morning in both h-alpha and calcium-K recorded with a 102mm f/7 spectroheliograph. The calcium image was stopped down to 72mm. ASI183mm camera. The seeing was very very good!
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