| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/12/20 | 4 | 40 | DAO | S00E40 | |
| 2025/12/21 | 12 | 50 | DRI | S07E26 | |
| 2025/12/22 | 12 | 130 | DAI | S08E11 | |
| 2025/12/23 | 8 | 80 | CSO | S08W02 | |
| 2025/12/24 | 4 | 60 | CSO | S08W20 |
| C | M |
|---|---|
| 10 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.3 | 2025/12/21 | 18:12 | 18:27 | 18:36 | |
| 2 | C4.0 | 2025/12/21 | 20:16 | 20:24 | 20:32 | |
| 3 | C3.9 | 2025/12/21 | 19:29 | 19:43 | 19:51 | |
| 4 | C3.1 | 2025/12/21 | 21:57 | 22:12 | 22:19 | |
| 5 | C2.6 | 2025/12/21 | 16:46 | 17:03 | 17:28 | |
| 6 | C2.3 | 2025/12/22 | 00:22 | 00:30 | 00:34 | |
| 7 | C2.2 | 2025/12/21 | 22:28 | 22:34 | 22:37 | |
| 8 | C2.0 | 2025/12/21 | 23:25 | 23:30 | 23:34 | |
| 9 | C1.4 | 2025/12/21 | 15:52 | 15:58 | 16:05 | |
| 10 | C1.3 | 2025/12/21 | 11:54 | 12:03 | 12:11 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/21 | M1.3 |
| 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 | 114.8 +23 |
| Last 30 days | 109.3 +22.9 |