| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/08/26 | 1 | 140 | HSX | S21E54 | |
| 2025/08/27 | 2 | 100 | DSI | S21E40 | |
| 2025/08/28 | 6 | 120 | CSI | S21E30 | |
| 2025/08/29 | 5 | 100 | DSI | S21E16 | |
| 2025/08/30 | 4 | 90 | DSO | S21E03 | |
| 2025/08/31 | 4 | 90 | DSO | S21W11 | |
| 2025/09/01 | 3 | 60 | HSX | S21W24 | |
| 2025/09/02 | 1 | 70 | HSX | S22W37 | |
| 2025/09/03 | 1 | 50 | HSX | S22W50 | |
| 2025/09/04 | 1 | 45 | HSX | S23W61 | |
| 2025/09/05 | 1 | 20 | HSX | S21W76 | |
| 2025/09/06 | 1 | 10 | AXX | S22W88 | |
| 2025/09/07 | 1 | 10 | AXX | S21W0* |
| C |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.0 | 2025/08/28 | 22:35 | 22:42 | 22:45 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M1.8 |
| 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 |