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Complex sunspot region 4366

Sunspot region 4366 has developed into a complex sunspot region with a magnetic Beta-Gamma-Delta layout. The region is impressive and has been producing strong solar flares today including two M5 events, two M6 events and even an X1.0 solar flare (R3-strong) that peaked at 12:33 UTC.

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Tuesday, 17 March 2026

M2.7 solar flare, CME arrival possible

Sunday, 1 February 2026

Complex sunspot region 4366

Monday, 19 January 2026

CME impact! S4 solar radiation storm

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AR4392 (including CMEs) 83 AR4397 1 Current Farside Activity 417 Comet C/2026 A1 (MAPS) for the southern hemisphere 18 Growth of Cycle 25 985

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