| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/08/12 | 8 | 50 | DAO | S04E61 | |
| 2025/08/14 | 8 | 50 | DAO | S02E28 | |
| 2025/08/15 | 7 | 40 | DAO | S02E16 | |
| 2025/08/16 | 7 | 20 | CRO | S03E02 | |
| 2025/08/17 | 9 | 40 | CAI | S03W11 | |
| 2025/08/18 | 6 | 10 | BXO | S02W24 | |
| 2025/08/19 | 6 | 10 | BXO | S02W38 |
| C |
|---|
| 6 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.3 | 2025/08/17 | 19:48 | 19:58 | 20:02 | |
| 2 | C1.8 | 2025/08/13 | 10:30 | 10:39 | 10:43 | |
| 3 | C1.8 | 2025/08/17 | 04:01 | 04:11 | 04:16 | |
| 4 | C1.4 | 2025/08/16 | 18:15 | 18:26 | 18:43 | |
| 5 | C1.3 | 2025/08/15 | 02:56 | 03:06 | 03:24 | |
| 6 | C1.2 | 2025/08/19 | 03:40 | 03:47 | 03:51 |
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| Last X-flare | 2026/02/02 | X1.6 |
| Last M-flare | 2026/02/02 | M2.5 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 97 -27 |
| Last 30 days | 117.7 +5.8 |