Sun in h-alpha (Spectroheliogram)
Taken by Richard Schrantz on February 7, 2025 @
Nicholasville, Kentucky, USA
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Here is an h-alpha spectroheliogram from this morning. Winter imaging with SHG's is tough, as clear, calm mornings are hard to come by. And, if you are lucky enough for that, then the jet stream is screaming overhead! 102mm f/7 SHG, ASI183mm camera.
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