Sun in h-alpha/calcium-H (Spectroheliogram)
Taken by Richard Schrantz on September 25, 2026 @
Nicholasville, Kentucky, USA
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Camera Used: Unavailable Unavailable
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Details:
Here is the sun from this morning in h-alpha and calcium-H imaged with a 102mm f/7 spectroheliograph (stopped to 72mm for calcium). ASI183mm camera. The seeing was fairly good.
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