Sunspot region AR8787
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/12/03 | 2 | 0 | BXO | N14E46 | |
| 1999/12/04 | 1 | 0 | AXX | N11E30 | |
| 1999/12/05 | 2 | 10 | BXO | N12E18 | |
| 1999/12/06 | 2 | 0 | BXO | N12E03 | |
| 1999/12/07 | 3 | 20 | DSO | N11W08 | |
| 1999/12/08 | 5 | 10 | BXO | N10W20 | |
| 1999/12/09 | 1 | 0 | AXX | N12W32 | |
| 1999/12/10 | 1 | 10 | HSX | N13W48 | |
| 1999/12/11 | 3 | 10 | BXO | N13W63 | |
| 1999/12/12 | 2 | 0 | BXO | N17W72 |
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Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/02/02 | M2.7 |
| 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 |
| February 2025 | 145 -9.5 |
| Last 30 days | 143.6 +3.8 |