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Solar activity report
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X9.0 solar flare! Strongest flare of Solar Cycle 25!
Sunspot region 3842 is on fire! This region is in a perfect earth-facing position and today produced the strongest solar flare of the current solar cycle! It was an X9.05 solar flare (R3-strong) that peaked at 12:18 UTC. This is in fact the strongest solar flare in 7 years. The last time we had solar flares bigger than this one was back in 2017! Yes that is the previous Solar Cycle!
Latest news
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Wednesday, 5 March 2025
Coronal hole faces Earth
Latest forum messages
AR4046 57The multiple event last week. 3AR4043 36Incoming & Unnumbered Active Regions 1653Filaments and prominences 748
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/03/27 | M2.0 |
| 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 | 130 -24.6 |
| Last 30 days | 130 -22.2 |