| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/08/25 | 4 | 110 | DAI | N05E68 | |
| 2025/08/26 | 7 | 200 | CAO | N05E55 | |
| 2025/08/27 | 9 | 170 | CAO | N04E41 | |
| 2025/08/28 | 5 | 200 | CAO | N04E30 | |
| 2025/08/29 | 8 | 140 | CAI | N04E18 | |
| 2025/08/30 | 8 | 140 | CAI | N04E03 | |
| 2025/08/31 | 6 | 180 | CAI | N04W10 | |
| 2025/09/01 | 7 | 210 | CAI | N04W22 | |
| 2025/09/02 | 3 | 240 | CAO | N04W37 | |
| 2025/09/03 | 6 | 170 | CSO | N03W50 | |
| 2025/09/04 | 3 | 160 | CSO | N03W62 | |
| 2025/09/05 | 3 | 130 | CSO | N03W77 | |
| 2025/09/06 | 1 | 80 | HSX | N05W92 | |
| 2025/09/07 | 1 | 80 | HSX | N05W0* |
| C | M |
|---|---|
| 16 | 5 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M4.56 | 2025/08/25 | 05:01 | 05:24 | 05:40 | |
| 2 | M3.35 | 2025/08/26 | 00:22 | 00:30 | 00:35 | |
| 3 | M2.7 | 2025/08/30 | 19:11 | 20:02 | 20:41 | |
| 4 | M1.27 | 2025/08/25 | 15:06 | 15:18 | 15:28 | |
| 5 | M1.13 | 2025/08/25 | 15:29 | 15:38 | 15:42 | |
| 6 | C9.96 | 2025/08/25 | 08:45 | 08:55 | 09:04 | |
| 7 | C9.2 | 2025/08/27 | 12:27 | 12:50 | 13:33 | |
| 8 | C7.5 | 2025/08/27 | 23:57 | 00:08 | 00:26 | |
| 9 | C6.9 | 2025/08/26 | 12:59 | 13:11 | 13:23 | |
| 10 | C6.1 | 2025/09/02 | 14:39 | 14:52 | 15:01 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |