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Bulletin on solar and geomagnetic activity Solar activity report
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Sunspot regions
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Kp values
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Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
M1.1 solar flare, coronal hole facing Earth
Newly numbered sunspot region 2321 looks to have fully rotated into view and was the source of an M1.1 (R1-minor) solar flare at 09:50 UTC. SOHO coronagraph imagery show that a minor coronal mass ejection was launched but it will more than likely be directed away from Earth.
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/03/30 | M1.0 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 127 -27.6 |
| Last 30 days | 127 -25.7 |