| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/12/01 | 3 | 110 | HSX | S16E32 | |
| 2025/12/02 | 4 | 120 | CAO | S17E17 | |
| 2025/12/03 | 4 | 110 | CSO | S18E03 | |
| 2025/12/04 | 4 | 100 | CSO | S16W10 | |
| 2025/12/05 | 2 | 100 | CSO | S18W24 | |
| 2025/12/06 | 1 | 110 | HSX | S18W38 | |
| 2025/12/07 | 1 | 120 | HSX | S18W52 | |
| 2025/12/08 | 5 | 60 | CSO | S16W64 | |
| 2025/12/09 | 3 | 60 | CSO | S16W76 | |
| 2025/12/10 | 2 | 60 | CSO | S05W92 | |
| 2025/12/11 | 2 | 60 | CSO | S16W0* |
| C | X |
|---|---|
| 10 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X1.1 | 2025/12/08 | 04:49 | 05:01 | 05:04 | |
| 2 | C6.7 | 2025/12/07 | 22:40 | 22:48 | 22:52 | |
| 3 | C6.3 | 2025/12/07 | 20:41 | 20:46 | 20:48 | |
| 4 | C4.0 | 2025/12/03 | 22:40 | 22:48 | 22:52 | |
| 5 | C3.9 | 2025/12/02 | 17:35 | 17:44 | 17:48 | |
| 6 | C3.6 | 2025/12/04 | 19:15 | 19:20 | 19:23 | |
| 7 | C3.6 | 2025/12/06 | 09:34 | 09:44 | 09:50 | |
| 8 | C3.5 | 2025/12/02 | 14:06 | 14:09 | 14:13 | |
| 9 | C3.3 | 2025/12/04 | 18:59 | 19:09 | 19:15 | |
| 10 | C2.6 | 2025/12/05 | 07:37 | 07:45 | 07:50 |
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| Last X-flare | 2026/02/01 | X1.0 |
| Last M-flare | 2026/02/01 | M5.2 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| Last 30 days | 119.2 +2.7 |