Sunspot region AR8437
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/01/11 | 1 | 90 | HSX | N11E68 | |
| 1999/01/12 | 1 | 90 | HSX | N11E55 | |
| 1999/01/13 | 1 | 80 | HSX | N11E42 | |
| 1999/01/14 | 1 | 90 | HSX | N11E29 | |
| 1999/01/15 | 1 | 100 | HSX | N10E16 | |
| 1999/01/16 | 1 | 100 | HSX | N10E03 | |
| 1999/01/17 | 1 | 80 | HSX | N10W11 | |
| 1999/01/18 | 1 | 70 | HSX | N10W24 | |
| 1999/01/19 | 1 | 90 | HSX | N11W37 | |
| 1999/01/20 | 1 | 70 | HSX | N11W50 | |
| 1999/01/21 | 1 | 70 | HSX | N11W64 | |
| 1999/01/22 | 1 | 60 | HSX | N11W77 | |
| 1999/01/23 | 1 | 50 | HSX | N11W89 |
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M5.6 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| Last 30 days | 128.5 -22.7 |