| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/09/23 | 4 | 40 | DAO | S04W32 | |
| 2025/09/24 | 8 | 60 | DAI | S03W48 | |
| 2025/09/25 | 8 | 70 | DSO | S04W61 | |
| 2025/09/26 | 3 | 50 | DSO | S03W74 | |
| 2025/09/27 | 2 | 30 | DSO | S04W89 | |
| 2025/09/28 | 2 | 30 | DSO | S04W0* |
| C |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.4 | 2025/09/24 | 16:53 | 17:03 | 17:13 |
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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 | 88.1 +2.2 |
| Last 30 days | 93.2 +32.7 |