Sunspot region AR8631
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/07/12 | 1 | 80 | HAX | N11E77 | |
| 1999/07/13 | 1 | 140 | HAX | N11E64 | |
| 1999/07/14 | 1 | 160 | HAX | N11E50 | |
| 1999/07/15 | 2 | 130 | HAX | N10E38 | |
| 1999/07/16 | 2 | 120 | HAX | N11E24 | |
| 1999/07/17 | 7 | 170 | CAO | N11E10 | |
| 1999/07/18 | 7 | 80 | DAO | N11W03 | |
| 1999/07/19 | 9 | 90 | DSO | N12W16 | |
| 1999/07/20 | 5 | 60 | CSO | N12W29 | |
| 1999/07/21 | 3 | 30 | HSX | N12W42 | |
| 1999/07/22 | 2 | 30 | HSX | N12W54 | |
| 1999/07/23 | 2 | 20 | AXX | N11W69 | |
| 1999/07/24 | 3 | 10 | BXO | N14W80 |
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/04 | M1.8 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 141.3 +17.3 |
| Last 30 days | 123.1 +14.7 |