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M4.4 solar flare
Not a prank! We just had the first M-class solar flare since November last year!
Sunspot region 2645
Sunspot region 2645 has gone Beta-Gamma-Delta! Beta-Gamma-What? Yes, Beta-Gamma-Delta. We give this classification to the most complex magnetic figuration a sunspot region can have: umbrae of opposite polarity in a single penumbra. A sunspot group with a beta-gamma magnetic configuration that contains one (or more) delta sunspots. Let's take a closer look and see if we should expect more solar flares.
Latest news
Coronal hole faces Earth
M2.7 solar flare with earth-directed CME!
M4.4 solar flare from sunspot region 4168
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |