| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/09/19 | 1 | 60 | HAX | N05E73 | |
| 2001/09/20 | 2 | 50 | HAX | N04E58 | |
| 2001/09/21 | 3 | 40 | CSO | N04E43 | |
| 2001/09/22 | 3 | 50 | CAO | N03E30 | |
| 2001/09/23 | 5 | 50 | CSO | N02E17 | |
| 2001/09/24 | 6 | 50 | DSO | N01E03 | |
| 2001/09/25 | 16 | 80 | DSO | N01W11 | |
| 2001/09/26 | 16 | 60 | DAO | N01W24 | |
| 2001/09/27 | 9 | 40 | DSO | N01W37 | |
| 2001/09/28 | 2 | 0 | AXX | N00W49 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/27 | M5.1 |
| Last geomagnetic storm | 2025/12/22 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 114.9 +23.1 |
| Last 30 days | 112.3 +26.4 |