| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/09/20 | 9 | 70 | CAO | N26E38 | |
| 2001/09/21 | 7 | 60 | DSO | N26E23 | |
| 2001/09/22 | 9 | 50 | DAO | N26E11 | |
| 2001/09/23 | 10 | 40 | DSO | N26W02 | |
| 2001/09/24 | 8 | 40 | DAO | N25W15 | |
| 2001/09/25 | 5 | 40 | CSO | N26W28 | |
| 2001/09/26 | 2 | 0 | BXO | N26W42 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/31 | M7.11 |
| Last geomagnetic storm | 2026/01/02 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 106.7 -17.3 |
| Last 30 days | 102.5 -7.3 |