| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/08/29 | 1 | 50 | HSX | N09E70 | |
| 2025/08/30 | 1 | 80 | HSX | N09E56 | |
| 2025/08/31 | 1 | 80 | HSX | N09E44 | |
| 2025/09/01 | 1 | 100 | HSX | N09E30 | |
| 2025/09/02 | 1 | 140 | HSX | N09E16 | |
| 2025/09/03 | 1 | 80 | HSX | N08E03 | |
| 2025/09/04 | 1 | 100 | HSX | N08W10 | |
| 2025/09/05 | 1 | 120 | HSX | N08W25 | |
| 2025/09/06 | 1 | 100 | HSX | N10W36 | |
| 2025/09/07 | 1 | 80 | HSX | N10W50 | |
| 2025/09/08 | 1 | 50 | HSX | N08W64 | |
| 2025/09/09 | 1 | 50 | HSX | N08W78 | |
| 2025/09/10 | 1 | 30 | HSX | N08W92 | |
| 2025/09/11 | 1 | 30 | HSX | N08W0* |
| C |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.0 | 2025/09/10 | 15:44 | 15:52 | 15:59 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 107.7 +21.8 |
| Last 30 days | 100 +44.8 |