| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/04/15 | 2 | 180 | DAO | S02E61 | |
| 2025/04/16 | 3 | 250 | DKO | S02E53 | |
| 2025/04/17 | 18 | 280 | DKI | S02E36 | |
| 2025/04/18 | 13 | 300 | DKI | S03W13 | |
| 2025/04/19 | 12 | 280 | DKI | S03E11 | |
| 2025/04/20 | 11 | 270 | DKI | S03W04 | |
| 2025/04/21 | 15 | 280 | DKI | S03W18 | |
| 2025/04/22 | 15 | 130 | DAI | S02W32 | |
| 2025/04/23 | 12 | 140 | DAI | S04W45 | |
| 2025/04/24 | 3 | 70 | HAX | S03W57 | |
| 2025/04/25 | 3 | 30 | HSX | S03W72 | |
| 2025/04/26 | 1 | 20 | HSX | S01W85 | |
| 2025/04/27 | 1 | 20 | HSX | S01W0* |
| C | M |
|---|---|
| 8 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.9 | 2025/04/21 | 18:24 | 18:37 | 18:41 | |
| 2 | C3.1 | 2025/04/15 | 20:08 | 20:20 | 20:49 | |
| 3 | C3.1 | 2025/04/16 | 23:41 | 23:54 | 00:06 | |
| 4 | C2.8 | 2025/04/17 | 09:32 | 09:46 | 09:52 | |
| 5 | C2.6 | 2025/04/22 | 18:51 | 18:57 | 19:00 | |
| 6 | C2.5 | 2025/04/17 | 14:01 | 14:05 | 14:11 | |
| 7 | C2.1 | 2025/04/17 | 22:00 | 22:04 | 22:06 | |
| 8 | C1.8 | 2025/04/18 | 05:51 | 06:01 | 06:15 | |
| 9 | C1.7 | 2025/04/16 | 15:04 | 15:08 | 15:13 |
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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 |