Sunspot region AR13399
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2023/08/09 | 2 | 20 | AXX | S16E36 | |
| 2023/08/10 | 3 | 10 | BXO | S14E23 | |
| 2023/08/11 | 1 | 10 | AXX | S16E08 |
2023/08/09
2023/08/10
2023/08/11
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2023/08/09
2023/08/10
2023/08/11
|
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4366 266Space Weather Memes 781Do the high-resolution sunspot counts point to more complex sunspots? 41Incoming & Unnumbered Active Regions 141Current Farside Activity 350
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Space weather facts
| Last X-flare | 2026/02/01 | X1.0 |
| Last M-flare | 2026/02/01 | M1.8 |
| 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 +4.2 |