Sunspot region AR8729
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/10/10 | 8 | 40 | CRO | N11E67 | |
| 1999/10/11 | 14 | 60 | BXO | N12E58 | |
| 1999/10/12 | 14 | 30 | BXO | N12E44 | |
| 1999/10/13 | 16 | 90 | FAO | N12E30 | |
| 1999/10/14 | 30 | 110 | CRO | N11E17 | |
| 1999/10/15 | 15 | 30 | CAO | N12E03 | |
| 1999/10/16 | 8 | 20 | CAO | N12W12 | |
| 1999/10/17 | 9 | 20 | BXO | N13W25 | |
| 1999/10/18 | 3 | 10 | BXO | N14W41 | |
| 1999/10/19 | 1 | 0 | AXX | N16W49 |
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!
Latest forum messages
Incoming & Unnumbered Active Regions 127Do the high-resolution sunspot counts point to more complex sunspots? 34CH 17 6Broad-spectrum aurora pillars 21Current Farside Activity 349
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| 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 |
| January 2026 | 119.3 -4.7 |
| Last 30 days | 120.3 +3.4 |