| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/04/17 | 1 | 30 | HSX | S30E63 | |
| 2025/04/18 | 1 | 30 | HSX | S28E47 | |
| 2025/04/19 | 6 | 70 | DSO | S30E37 | |
| 2025/04/20 | 4 | 80 | DAO | S29E25 | |
| 2025/04/21 | 3 | 70 | CSO | S30E11 | |
| 2025/04/22 | 1 | 70 | HSX | S31W02 | |
| 2025/04/23 | 3 | 70 | CSO | S32W14 | |
| 2025/04/24 | 1 | 40 | HSX | S31W27 | |
| 2025/04/25 | 1 | 40 | HSX | S31W41 | |
| 2025/04/26 | 1 | 30 | HSX | S31W54 | |
| 2025/04/27 | 1 | 30 | HSX | S31W65 | |
| 2025/04/28 | 1 | 30 | HSX | S30W78 | |
| 2025/04/29 | 1 | 20 | HSX | S31W91 | |
| 2025/04/30 | 1 | 20 | HSX | S31W0* |
| C |
|---|
| 3 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.3 | 2025/04/29 | 23:11 | 23:25 | 23:36 | |
| 2 | C4.3 | 2025/04/19 | 16:23 | 16:28 | 16:32 | |
| 3 | C2.0 | 2025/04/20 | 06:20 | 06:23 | 06:26 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |