Sun in h-alpha/calcium-K (Spectroheliogram) 9/26 & 9/27
Taken by Richard Schrantz on September 26, 2025 @
Nicholasville, Kentucky, USA
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
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Details:
Here is an image of the sun in h-alpha from 9/26 and an image in calcium-K from 9/27. Both recorded with a 102mm f/7 spectroheliograph. Calcium image stopped down to 72mm. ASI 183mm camera.
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