On this page you will find an overview of the strongest solar radiation storms from Solar Cycle 23 together with links to more information in our archive.
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Last X-flare | 2024/11/06 | X2.39 |
Last M-flare | 2024/12/05 | M2.5 |
Last geomagnetic storm | 2024/11/10 | 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 | 106.8 -45.8 |
Last 30 days | 129.8 -30.9 |