Sunspot region AR11304
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/09/25 | 2 | 10 | BXO | N12E22 | |
| 2011/09/26 | 4 | 20 | BXO | N12E07 | |
| 2011/09/27 | 10 | 40 | DSI | N13W07 | |
| 2011/09/28 | 3 | 10 | CRO | N12W20 | |
| 2011/09/29 | 3 | 10 | BXO | N13W33 | |
| 2011/09/30 | 2 | 10 | BXO | N13W44 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
Incoming & Unnumbered Active Regions 168What, no CH/HSS thread? 51AR4374 19Current Farside Activity 382Filaments and prominences 489
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 106.5 -6.1 |
| Last 30 days | 124.3 +22.3 |