Sunspot region AR13523
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2023/12/16 | 2 | 20 | HRX | N21E62 | |
| 2023/12/17 | 1 | 10 | HRX | N21E45 | |
| 2023/12/18 | 2 | 10 | BXO | N22E38 | |
| 2023/12/19 | 1 | 5 | AXX | N22E24 | |
| 2023/12/20 | 2 | 10 | BXO | N25E10 |
2023/12/16
2023/12/17
2023/12/18
2023/12/19
2023/12/20
|
2023/12/16
2023/12/17
2023/12/18
2023/12/19
2023/12/20
|
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
Solar Transit, Artifacts, or Radiation 82What, no CH/HSS thread? 54Current Farside Activity 387Changelog/Featurelog 178AR4374 20
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 106.5 -6.1 |
| Last 30 days | 123.7 +20 |