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 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/08 | M2.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |