By Helio de Carvalho Vital | 2025-12-31
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farewell
On 12/31/2025 09:58 am by Patricio Leon | Santiago, Chile
AR4325, center sunspot, has grown steadily the last days but the action was provided earlier today by AR4324, the unimpressive upper spot, which emitted a powerful M7 class flare, odd thing considering its stable beta configuration
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C
