Sun in h-alpha/calcium-H (Spectroheliogram)
Taken by Richard Schrantz on May 28, 2026 @
Nicholasville, Kentucky, USA
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Details:
Here is the sun from today in h-alpha and calcium-H using a 102mm f/7 spectroheliograph (Ca-H stopped down to 72mm). ASI183mm camera. The seeing was really good! I also added a prominence in both Ca-H and h-epsilon (just 1.6 Angstroms apart). Make sure to view full disk images in full resolution on a large monitor for best view. Even so, you will have to pan around.
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