| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/03/20 | 16 | 40 | CRO | N19W22 | |
| 1999/03/21 | 11 | 30 | DSO | N20W36 | |
| 1999/03/22 | 4 | 20 | BXO | N20W50 | |
| 1999/03/23 | 5 | 20 | BXO | N19W62 |
| C |
|---|
| 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.03 | 1999/03/19 | 23:25 | 23:30 | 23:32 | |
| 2 | C1.66 | 1999/03/19 | 21:10 | 21:12 | 21:14 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/12 | M1.1 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 150 +58.2 |
| Last 30 days | 108.6 +10 |