Sunspot region AR8538
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/05/08 | 6 | 20 | CRO | N10W33 | |
| 1999/05/09 | 7 | 50 | CRO | N11W46 | |
| 1999/05/10 | 7 | 20 | BXO | N11W62 | |
| 1999/05/11 | 4 | 10 | BXO | N11W76 | |
| 1999/05/12 | 4 | 40 | CRO | N10W88 |
Latest news
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Wednesday, 31 December 2025
Happy New Year! Celebrate with an M7.1 solar flare!
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AR4366 59Do the high-resolution sunspot counts point to more complex sunspots? 37Space Weather Memes 777Incoming & Unnumbered Active Regions 139X1.9 CME 1342
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/02/01 | M1.9 |
| 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 |
| Last 30 days | 119.2 +2.7 |