Sunspot region 2403 remains the most complex sunspot region on the earth-facing solar disk and is producing M-class solar flares. It has been the source of two M-class events today: M1.2 and M2.2.
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Last X-flare | 2024/05/11 | X5.7 |
Last M-flare | 2024/05/10 | M3.7 |
Last geomagnetic storm | 2024/05/10 | Kp9 (G5) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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April 2024 | 136.5 +31.6 |
May 2024 | 139.8 +3.3 |
Last 30 days | 170.5 +79.6 |