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 | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| March 2026 | 83.5 -29.1 |
| Last 30 days | 67.7 -52.1 |