| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/12/14 | 2 | 10 | CRO | S27W03 | |
| 1999/12/15 | 1 | 0 | AXX | S27W18 | |
| 1999/12/16 | 1 | 0 | AXX | S26W32 | |
| 1999/12/17 | 1 | 0 | AXX | S25W45 | |
| 1999/12/18 | 1 | 0 | AXX | S25W58 |
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/26 | M4.0 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 81.4 +3.2 |
| Last 30 days | 80 -0.8 |