| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/04/12 | 4 | 10 | DRO | S16W32 | |
| 2015/04/13 | 4 | 30 | DRO | S16W48 | |
| 2015/04/14 | 4 | 20 | BXO | S16W62 | |
| 2015/04/15 | 5 | 60 | BXO | S16W76 | |
| 2015/04/16 | 1 | 30 | HSX | S17W85 | |
| 2015/04/17 | 1 | 30 | HSX | S17W99 |
| C |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.14 | 2015/04/12 | 22:16 | 22:26 | 22:34 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/21 | M1.3 |
| Last geomagnetic storm | 2025/12/22 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 114.3 +22.5 |
| Last 30 days | 109.4 +22.7 |