By Kevan Hubbard | 2025-02-06
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active western spot
On 02/06/2025 10:54 am by Patricio Leon | Santiago, Chile
AR3981 sunspot maintains a high activity due to its complex magnetic field, so far it has emmited 37 flares, 20 of them class M, up to M7. It has only a debt to pay: an X class flare.
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C
