Sunspot region AR12166
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2014/09/13 | 2 | 30 | AXX | N12E66 | |
| 2014/09/14 | 5 | 30 | CRO | N13E61 | |
| 2014/09/15 | 11 | 60 | DAO | N13E44 | |
| 2014/09/16 | 7 | 40 | CAO | N12E28 | |
| 2014/09/17 | 7 | 30 | CAO | N12E13 | |
| 2014/09/18 | 7 | 30 | CAO | N12W00 | |
| 2014/09/19 | 9 | 30 | CAO | N13W14 | |
| 2014/09/20 | 4 | 20 | DSO | N11W27 |
2014/09/13
2014/09/14
2014/09/15
2014/09/16
2014/09/17
2014/09/18
2014/09/19
2014/09/20
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2014/09/13
2014/09/14
2014/09/15
2014/09/16
2014/09/17
2014/09/18
2014/09/19
2014/09/20
|
| C |
|---|
| 4 |
The top 4 solar flares from sunspot region 12166
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.43 | 2014/09/21 | 11:31 | 11:53 | 12:32 | |
| 2 | C3.37 | 2014/09/15 | 20:44 | 20:51 | 20:59 | |
| 3 | C2.38 | 2014/09/13 | 04:29 | 04:47 | 04:58 | |
| 4 | C1.76 | 2014/09/19 | 00:02 | 00:07 | 00:13 |
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.4 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| April 2025 | 147 -7.6 |
| Last 30 days | 128.8 -21.8 |