Sunspot 4374
Taken by David Wilson on February 17, 2026 @
Inverness, Scotland
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Details:
Just trying out a long lost solar photosphere filter on AR4374. It looks like the filaments in the penumbra are flowing into the central umbra and starting to close it up. Also, the mini sunspots below the main sunspot seem to have materials moving between them.
Playback at 1800x real time.
Photographer's website:
https://tinyurl.com/5d83mn5j
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