Just hours after we mentioned the potential of sunspot region 2371, it erupted with a stunning long duration M3.0 (R1-minor) solar flare that peaked at 17:36 UTC. A large coronal mass ejection was launched that expanded to an asymmetrical full halo coronal mass ejection. What that means is that this coronal mass ejection is likely to arrive at Earth in a couple of days.
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Last X-flare | 2024/12/08 | X2.2 |
Last M-flare | 2024/12/25 | M4.9 |
Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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November 2024 | 152.5 -13.9 |
December 2024 | 115.2 -37.3 |
Last 30 days | 120.1 -38.2 |