Sunspot region AR11257
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/07/18 | 12 | 50 | DAI | N19W56 | |
| 2011/07/19 | 12 | 120 | DSI | N20W69 | |
| 2011/07/20 | 3 | 240 | DSO | N20W83 |
| B | C |
|---|---|
| 3 | 1 |
The top 4 solar flares from sunspot region 11257
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.12 | 2011/07/17 | 18:52 | 19:26 | 19:46 | |
| 2 | B6.85 | 2011/07/17 | 07:52 | 08:22 | 08:28 | |
| 3 | B5.68 | 2011/07/17 | 11:28 | 11:32 | 11:36 | |
| 4 | B4.86 | 2011/07/17 | 10:26 | 10:29 | 10:32 |
Latest news
Saturday, 14 September 2024
X4.5 solar flare with a fast coronal mass ejection
Thursday, 12 September 2024
G3 geomagnetic storm watch due to CME passage
Monday, 12 August 2024
Severe G4 geomagnetic storm
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Space weather facts
| Last X-flare | 2024/09/14 | X4.54 |
| Last M-flare | 2024/09/14 | M3.0 |
| Last geomagnetic storm | 2024/09/17 | Kp8- (G4) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| August 2024 | 215.5 +19 |
| September 2024 | 151.6 -63.9 |
| Last 30 days | 158.3 -54.2 |