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Bulletin on solar and geomagnetic activity Solar activity report
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Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
Surprise G1 storm, Sunspot region 2529
A surprise minor G1 geomagnetic storm took place last night thanks to a prolonged period where the direction of the IMF (Bz) turned southward. Values as low as -12nT were recorded and this caused massive auroral outbreaks at high latitudes. Vidid naked eye auroral displays were seen from locations like Estonia and Scotland. Even sky cams in northern Germany captured some faint red aurora in the distance.
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Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
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Unexplained proton activity 74Incoming & Unnumbered Active Regions 1858AR 14079 147Filaments and prominences 157Line chart of indicators on the auror video, animated graph trace 31
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/30 | M2.03 |
| Last geomagnetic storm | 2025/05/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 78.3 -62.3 |
| Last 30 days | 106.3 -28.8 |