Sunspot region AR12407
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2015/08/31 | 3 | 30 | CRO | N15W48 | |
| 2015/09/01 | 5 | 20 | CRO | N15W62 | |
| 2015/09/02 | 5 | 50 | CSO | N16W75 | |
| 2015/09/03 | 3 | 30 | CSO | N17W87 | |
| 2015/09/04 | 3 | 30 | CSO | N17W0* |
2015/08/31
2015/09/01
2015/09/02
2015/09/03
|
2015/08/31
2015/09/01
2015/09/02
2015/09/03
|
| B | C |
|---|---|
| 3 | 1 |
The top 4 solar flares from sunspot region 12407
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.47 | 2015/09/03 | 11:28 | 11:37 | 11:48 | |
| 2 | B6.81 | 2015/09/02 | 07:50 | 07:55 | 08:00 | |
| 3 | B4.04 | 2015/09/03 | 07:00 | 07:03 | 07:08 | |
| 4 | B3.88 | 2015/09/03 | 09:38 | 09:43 | 09:51 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
Current Farside Activity 368AR4366 971AR 4373 2Do the high-resolution sunspot counts point to more complex sunspots? 49Feb 8-9 CMEs 6
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Space weather facts
| Last X-flare | 2026/02/04 | X4.3 |
| Last M-flare | 2026/02/05 | M1.1 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 139.3 +26.7 |
| Last 30 days | 124.9 +18 |