| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/09/27 | 3 | 10 | BXO | N30E65 | |
| 2025/09/28 | 3 | 20 | CSO | N30E51 | |
| 2025/09/29 | 3 | 25 | CAO | N28E38 | |
| 2025/09/30 | 1 | 30 | HSX | N27E23 | |
| 2025/10/01 | 1 | 30 | HSX | N27E10 | |
| 2025/10/02 | 1 | 20 | HRX | N27W04 | |
| 2025/10/03 | 1 | 20 | HRX | N27W17 | |
| 2025/10/04 | 1 | 10 | AXX | N27W33 | |
| 2025/10/05 | 1 | 10 | AXX | N27W47 | |
| 2025/10/06 | 1 | 10 | AXX | N27W61 | |
| 2025/10/07 | 1 | 10 | AXX | N27W72 |
| C |
|---|
| 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C5.5 | 2025/09/28 | 21:43 | 21:50 | 21:56 | |
| 2 | C5.2 | 2025/10/02 | 02:17 | 02:22 | 02:25 |
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| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 118.7 -5.3 |
| Last 30 days | 120.4 +5.6 |