Sunspot region AR8398
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/12/01 | 12 | 60 | CAO | N18W05 | |
| 1998/12/02 | 8 | 70 | CAO | N18W15 | |
| 1998/12/03 | 10 | 20 | CAO | N18W28 | |
| 1998/12/04 | 7 | 20 | BXO | N18W40 | |
| 1998/12/05 | 4 | 10 | BXO | N18W52 | |
| 1998/12/06 | 2 | 160 | CSO | N17W60 | |
| 1998/12/07 | 1 | 200 | HSX | N18W72 | |
| 1998/12/08 | 1 | 80 | HAX | N20W86 |
Latest news
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Tuesday, 11 November 2025
X5.1 solar flare, G4 geomagnetic storm watch
Latest forum messages
AR4299 M8.1 CME 2025/12/06 62AR4294 / 4296 / 4298 347Changelog/Featurelog 177Incoming & Unnumbered Active Regions 20AR 4299 87
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |