A sign of life from our star! Sunspot region 2733 erupted with a C5.0 solar flare today at 13:22 UTC. While not the kind of solar fireworks like M or X-class solar flares, this is a fairly decent solar flare during solar minimum. In fact, this is the strongest solar flare since a C4 class solar flare that took place on 30/03/2018.
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Last X-flare | 2025/03/28 | X1.1 |
Last M-flare | 2025/03/31 | M1.2 |
Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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February 2025 | 154.6 +17.6 |
March 2025 | 127 -27.6 |
Last 30 days | 127 -25.7 |