Sunspot region AR11173
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/03/17 | 10 | 40 | CAO | S28E39 | |
| 2011/03/18 | 11 | 60 | CAO | S29E26 | |
| 2011/03/19 | 9 | 30 | CRO | S29E14 | |
| 2011/03/20 | 6 | 20 | BXO | S30E01 | |
| 2011/03/21 | 5 | 20 | BXO | S29W13 |
| B |
|---|
| 1 |
The top 1 solar flares from sunspot region 11173
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B4.71 | 2011/03/18 | 11:40 | 11:45 | 11:50 |
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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| 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 | 149.4 -66.1 |
| Last 30 days | 156.7 -55.8 |