Sun in h-alpha and calcium-H
Taken by Richard Schrantz on April 6, 2024 @
Nicholasville, KY USA
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Details:
Here are a couple images of the sun taken today using a homemade spectroheliograph based on a 102mm f/7 refractor. One is h-alpha and the other is calcium. If you can, look at each image at full resolution on a large desktop monitor. Calcium image reduced by 50%. ASI183mm camera.
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