Sunspot region AR11287
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/09/04 | 3 | 30 | CAO | S30E64 | |
| 2011/09/05 | 3 | 80 | CSO | S32E51 | |
| 2011/09/06 | 5 | 80 | CSO | S31E38 | |
| 2011/09/07 | 5 | 100 | CSO | S31E25 | |
| 2011/09/08 | 1 | 100 | HSX | S30E09 | |
| 2011/09/09 | 1 | 60 | HSX | S30W05 | |
| 2011/09/10 | 2 | 60 | HSX | S29W16 | |
| 2011/09/11 | 2 | 70 | HSX | S29W28 | |
| 2011/09/12 | 2 | 60 | HSX | S28W42 | |
| 2011/09/13 | 2 | 50 | CSO | S29W53 | |
| 2011/09/14 | 3 | 80 | DSO | S27W68 | |
| 2011/09/15 | 4 | 170 | DSO | S27W78 | |
| 2011/09/16 | 1 | 10 | HSX | S28W83 |
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 11287
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.32 | 2011/09/03 | 22:08 | 22:12 | 22:14 |
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| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/02/23 | M4.9 |
| Last geomagnetic storm | 2025/02/19 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2025 | 137 -17.5 |
| February 2025 | 154.3 +17.3 |
| Last 30 days | 150.6 -11.5 |