| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/08/18 | 1 | 40 | HAX | S11E72 | |
| 2025/08/19 | 1 | 40 | HSX | S11E58 | |
| 2025/08/20 | 1 | 40 | HSX | S07E42 | |
| 2025/08/21 | 1 | 40 | HSX | S09E29 | |
| 2025/08/22 | 1 | 40 | HSX | S09E16 | |
| 2025/08/23 | 1 | 50 | HSX | S09E04 | |
| 2025/08/24 | 1 | 50 | HSX | S09W09 | |
| 2025/08/25 | 1 | 50 | HSX | S09W23 | |
| 2025/08/26 | 1 | 30 | HSX | S09W38 | |
| 2025/08/27 | 1 | 30 | HSX | S09W50 | |
| 2025/08/28 | 1 | 30 | HRX | S09W64 | |
| 2025/08/29 | 1 | 10 | AXX | S09W78 |
| C |
|---|
| 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.1 | 2025/08/18 | 21:30 | 21:52 | 22:09 | |
| 2 | C1.7 | 2025/08/21 | 02:20 | 02:32 | 02:40 |
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| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M2.2 |
| 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 |
| February 2026 | 141.3 +17.3 |
| Last 30 days | 123.1 +14.7 |