Sun in h-alpha/calcium-H (spectroheliogram)
Taken by Richard Schrantz on May 28, 2024 @ Nicholasville, KY USA
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Here are two spectroheliograms from today. One is h-alpha and the other one is calcium-H. 102mm f/7 spectroheliograph, ASI183mm camera. Make sure to view at full resolution on a large monitor.
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