| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/09/16 | 3 | 20 | CRO | S17E63 | |
| 2025/09/17 | 5 | 40 | CAO | S16W78 | |
| 2025/09/18 | 5 | 50 | CAO | S16E36 | |
| 2025/09/19 | 8 | 40 | CAO | S16E21 | |
| 2025/09/20 | 4 | 40 | CAO | S15E06 | |
| 2025/09/21 | 1 | 10 | AXX | S17W07 | |
| 2025/09/22 | 3 | 10 | AXX | S18W16 | |
| 2025/09/23 | 1 | 10 | AXX | S13W36 |
| C |
|---|
| 6 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.7 | 2025/09/24 | 02:15 | 02:29 | 02:40 | |
| 2 | C6.6 | 2025/09/21 | 21:04 | 21:16 | 21:20 | |
| 3 | C2.9 | 2025/09/18 | 22:28 | 22:41 | 22:56 | |
| 4 | C1.8 | 2025/09/16 | 11:10 | 11:28 | 11:34 | |
| 5 | C1.8 | 2025/09/19 | 16:36 | 16:44 | 16:52 | |
| 6 | C1.7 | 2025/09/16 | 10:49 | 11:00 | 11:10 |
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| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/13 | M1.0 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 116.2 +3.6 |
| Last 30 days | 130.8 +34.3 |