Sunspot region AR11377
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/12/15 | 4 | 60 | DRO | N12E43 | |
| 2011/12/16 | 8 | 70 | DSO | N11E29 | |
| 2011/12/17 | 9 | 70 | DSO | N12E15 | |
| 2011/12/18 | 9 | 50 | DSO | N12E03 | |
| 2011/12/19 | 4 | 40 | DAO | N12W11 | |
| 2011/12/20 | 3 | 20 | CRO | N13W24 | |
| 2011/12/21 | 3 | 10 | BXO | N12W40 |
| B |
|---|
| 1 |
The top 1 solar flares from sunspot region 11377
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B7.08 | 2011/12/16 | 08:14 | 08:20 | 08:27 |
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 394Solar Transit, Artifacts, or Radiation 84What, 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 | 103.9 -8.7 |
| Last 30 days | 121.7 +18 |