Sun in Ca-H/h-epsilon (Spectroheliogram)
Taken by Richard Schrantz on April 23, 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 calcium-H taken with a 102mm f/7 spectroheliograph (stopped to 72mm). ASI183mm camera. There happened to be an M1 solar flare while I was recording spectral scans, so I also added a Ca-H/h-epsilon flare comparison, as the h-epsilon line and the Ca-H line are only 1.6 Angstroms apart and are recorded in the same spectral scans.
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