Sunspot region 3663 celebrates the start of a new week with a massive X4.5 (R3-strong) solar flare. This is the third strongest solar flare of solar cycle 25 and the strongest solar flare produced by this sunspot region thus far. Sounds great right? When will I be able to see aurora I hear you ask...
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Last X-flare | 2025/03/28 | X1.1 |
Last M-flare | 2025/04/15 | M1.2 |
Last geomagnetic storm | 2025/04/16 | Kp8- (G4) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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March 2025 | 134.2 -20.4 |
April 2025 | 120.5 -13.7 |
Last 30 days | 116.6 -25.7 |