Sunspot region AR11831
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2013/08/22 | 3 | 30 | CAO | N14W34 | |
| 2013/08/23 | 5 | 30 | DRO | N13W49 | |
| 2013/08/24 | 7 | 60 | DAO | N14W63 | |
| 2013/08/25 | 3 | 80 | CAO | N13W77 |
2013/08/22
2013/08/23
2013/08/24
2013/08/25
|
2013/08/22
2013/08/23
2013/08/24
2013/08/25
|
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
Current Farside Activity 357X8 CME 89Space Weather Memes 789Incoming & Unnumbered Active Regions 151AR4362 17
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M1.1 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 140.8 +16.8 |
| Last 30 days | 124.4 +17 |