Sunspot region AR11290
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2011/09/10 | 5 | 30 | CRO | S15E29 | |
| 2011/09/11 | 5 | 50 | DRO | S15E16 | |
| 2011/09/12 | 10 | 70 | DSO | S15E03 | |
| 2011/09/13 | 10 | 70 | DSI | S15W11 | |
| 2011/09/14 | 8 | 70 | DAO | S14W25 | |
| 2011/09/15 | 4 | 30 | CRO | S13W38 | |
| 2011/09/16 | 2 | 10 | AXX | S13W55 | |
| 2011/09/17 | 3 | 10 | BXO | S13W69 | |
| 2011/09/18 | 4 | 10 | BXO | S13W84 |
| C | M |
|---|---|
| 4 | 1 |
The top 5 solar flares from sunspot region 11290
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.34 | 2011/09/16 | 11:30 | 11:36 | 11:39 | |
| 2 | C2.98 | 2011/09/16 | 15:05 | 15:08 | 15:12 | |
| 3 | C2.08 | 2011/09/16 | 18:00 | 18:03 | 18:11 | |
| 4 | C2.07 | 2011/09/17 | 08:05 | 08:08 | 08:10 | |
| 5 | C2.01 | 2011/09/16 | 22:09 | 22:13 | 22:45 |
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| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/02/23 | M4.9 |
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| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
| January 2025 | 137 -17.5 |
| February 2025 | 154.3 +17.3 |
| Last 30 days | 150.6 -11.5 |