Sunspot region AR11017
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2009/05/14 | 2 | 10 | BXO | N18E27 | |
| 2009/05/15 | 8 | 20 | BXO | N18E17 | |
| 2009/05/16 | 2 | 10 | AXX | N18E06 | |
| 2009/05/17 | 5 | 20 | BXO | N18W09 | |
| 2009/05/18 | 3 | 10 | BXO | N18W21 | |
| 2009/05/19 | 4 | 30 | BXO | N18W35 | |
| 2009/05/20 | 1 | 10 | HRX | N17W50 |
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
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AR4299 M8.1 CME 2025/12/06 129AR 4299 121AR4294 / 4296 / 4298 405New paper on the Gannon Storm 10-11 May 2024 2Electron event 10
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M1.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |