| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/05/21 | 3 | 30 | CRO | N20E47 | |
| 2025/05/22 | 2 | 10 | CRO | N20E35 | |
| 2025/05/23 | 7 | 20 | CRO | N21E21 | |
| 2025/05/24 | 2 | 10 | AXX | N21E11 | |
| 2025/05/25 | 2 | 10 | AXX | N20W06 | |
| 2025/05/28 | 2 | 10 | AXX | N20W47 | |
| 2025/05/29 | 1 | 10 | AXX | N20W61 | |
| 2025/05/30 | 1 | 10 | AXX | N20W75 |
| C |
|---|
| 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.9 | 2025/05/26 | 01:28 | 01:44 | 01:53 | |
| 2 | C1.4 | 2025/05/24 | 19:10 | 19:17 | 19:25 |
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| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/07 | M2.6 |
| Last geomagnetic storm | 2026/05/05 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 122.1 +42.8 |
| Last 30 days | 91.5 -9.6 |