Sun in h-alpha (Spectroheliogram)
Taken by Richard Schrantz on May 11, 2025 @
Nicholasville, Kentucky, USA
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Camera Used: Unavailable Unavailable
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Details:
Here is a spectroheliogram (h-alpha). Plus, I added a dopplergram showing a surge prominence from departing sunspot 4079 moving away from us (red-shifted). 102mm SHG, ASI183mm camera. Thesmiths software for the disk and JSol'Ex software for the doppler prominence. Disk stack of 15 scans sharpened with IMPPG. Prominence a single scan unsharpened.
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