Sunspot region AR8511
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/04/07 | 6 | 100 | DAO | S17E59 | |
| 1999/04/08 | 5 | 130 | DAO | S17E46 | |
| 1999/04/09 | 5 | 110 | DAO | S17E33 | |
| 1999/04/10 | 4 | 100 | DSO | S17E21 | |
| 1999/04/11 | 6 | 110 | DAO | S16E07 | |
| 1999/04/12 | 4 | 120 | DAO | S17W05 | |
| 1999/04/13 | 5 | 80 | DSO | S16W19 | |
| 1999/04/14 | 3 | 20 | CSO | S16W33 | |
| 1999/04/15 | 2 | 20 | HSX | S20W49 | |
| 1999/04/16 | 1 | 0 | AXX | S17W61 |
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Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/01/22 | M1.3 |
| Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2024 | 154.5 +2 |
| January 2025 | 145.2 -9.3 |
| Last 30 days | 163.2 +45.8 |