Sun In H-alpha/calcium-H (spectroheliogram)

Sun in h-alpha/calcium-H (spectroheliogram)
Taken by Richard Schrantz on September 8, 2024 @ Nicholasville, KY USA

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Here are two spectroheliograms. One is h-alpha and the other is calcium-H. 102mm f/7 refractor, ASI183mm camera. Calcium stopped down to 72mm.

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