Sun in h-alpha (Spectroheliogram) Doppler
Taken by Richard Schrantz on June 29, 2025 @
Nicholasville, Kentucky, USA
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Details:
Here is an eclipsed Dopplergram of today's prominences, which were in the process of lifting off the sun. This Dopplergram was created from a single 102mm f/7 spectroheliograph scan, assigning a pixel shift of -4 to blue, zero to green, and +4 to red. A 4 pixel shift represents about a 0.25 Angstrom shift on my setup. ASI183mm camera.
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