Sunspot region AR8466
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/02/17 | 1 | 0 | AXX | S23E59 | |
| 1999/02/18 | 1 | 0 | AXX | S24E44 | |
| 1999/02/19 | 1 | 0 | AXX | S24E32 | |
| 1999/02/20 | 2 | 0 | BXO | S22E20 | |
| 1999/02/21 | 2 | 0 | BXO | S22E05 | |
| 1999/02/22 | 2 | 10 | BXO | S22W14 | |
| 1999/02/23 | 6 | 10 | BXO | S21W25 |
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Latest forum messages
Solar Transit, Artifacts, or Radiation 87CMes from ar 4392 (19-21st of march) 264Incoming & Unnumbered Active Regions 232Growth of Cycle 25 993Photographing auroras 231
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/23 | 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 | 77.7 -0.5 |
| Last 30 days | 72.3 -15.7 |