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Bulletin on solar and geomagnetic activity Solar activity report
Geophysical report
Sunspot regions
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Kp values
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Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
Faint partial halo coronal mass ejection
Sunspot region 2740 has been much less active as it has been decayed the past few days. But that didn't mean it went totally quiet. A minor eruption near the this sunspot region took place around midnight UTC yesterday and launched a faint partial halo coronal mass ejection that could arrive at Earth in a few days from now.
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Latest forum messages
Incoming & Unnumbered Active Regions 1883AR4087 86Unspecified geomagnetic activity 2426AR4086 49AR 14079 170
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Space weather facts
| Last X-flare | 2025/05/14 | X2.7 |
| Last M-flare | 2025/05/14 | M4.6 |
| 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 | 74.9 -65.7 |
| Last 30 days | 99.8 -31.1 |