Sunspot region AR10491
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2003/10/28 | 3 | 50 | DAO | S06E09 | |
| 2003/10/29 | 6 | 50 | DAO | S07W05 | |
| 2003/10/30 | 13 | 100 | DAO | S06W19 | |
| 2003/10/31 | 10 | 120 | DSO | S06W32 | |
| 2003/11/01 | 12 | 60 | DAO | S07W47 | |
| 2003/11/02 | 7 | 40 | DSO | S07W60 | |
| 2003/11/03 | 2 | 30 | AXX | S08W73 |
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 84Current Farside Activity 391What, no CH/HSS thread? 54Changelog/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 |