| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/07/31 | 10 | 40 | CAI | N10W09 | |
| 2025/08/01 | 15 | 70 | DAI | N10W24 | |
| 2025/08/02 | 27 | 270 | DAI | N12W38 | |
| 2025/08/03 | 19 | 430 | DKI | N10W52 | |
| 2025/08/04 | 14 | 280 | EHI | N11W64 | |
| 2025/08/05 | 11 | 250 | EHI | N11W79 | |
| 2025/08/06 | 11 | 250 | EHI | N11W92 | |
| 2025/08/07 | 11 | 250 | EHI | N11W0* |
| C |
|---|
| 19 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.0 | 2025/08/06 | 07:42 | 07:56 | 08:05 | |
| 2 | C4.4 | 2025/08/05 | 19:33 | 19:39 | 19:45 | |
| 3 | C3.5 | 2025/08/02 | 18:59 | 19:17 | 19:25 | |
| 4 | C3.5 | 2025/08/03 | 09:17 | 09:29 | 09:35 | |
| 5 | C2.9 | 2025/08/02 | 14:49 | 15:00 | 15:10 | |
| 6 | C2.7 | 2025/08/02 | 15:10 | 15:15 | 15:17 | |
| 7 | C2.6 | 2025/08/03 | 08:56 | 09:11 | 09:17 | |
| 8 | C2.4 | 2025/08/02 | 17:26 | 17:40 | 17:48 | |
| 9 | C2.3 | 2025/08/01 | 21:25 | 21:34 | 21:41 | |
| 10 | C2.0 | 2025/08/01 | 01:52 | 01:54 | 02:02 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/08 | M2.0 |
| 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 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |