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Solar activity
Auroral activity
M3.9 solar flare, S1 radiation storm

M-class flaring continues today from sunspot region 2975 with an M2.9 solar flare this night and a spectacular long duration M3.9 solar flare at 13:55 UTC. While writing this news article, we see yet another M-class flare from this region peaking at M4.3 but this solar flare looks much more impulsive and might not release a CME, but it is still way too early to tell.

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Last X-flare2025/12/01X1.9
Last M-flare2025/12/04M6.0
Last geomagnetic storm2025/12/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
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Last 30 days106.3 +12.6

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