Sunspot region AR12640
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/02/27 | 2 | 10 | BXO | N11E24 | |
| 2017/02/28 | 4 | 20 | BXO | N09E11 | |
| 2017/03/01 | 2 | 30 | AXX | N08W04 | |
| 2017/03/02 | 2 | 10 | AXX | N09W18 | |
| 2017/03/03 | 1 | 10 | AXX | N08W33 |
2017/02/27
2017/02/28
2017/03/01
2017/03/02
2017/03/03
|
2017/02/27
2017/02/28
2017/03/01
2017/03/02
2017/03/03
|
| B |
|---|
| 2 |
The top 2 solar flares from sunspot region 12640
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B4.01 | 2017/02/26 | 23:11 | 23:18 | 23:25 | |
| 2 | B1.6 | 2017/02/27 | 04:57 | 05:00 | 05:04 |
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
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/16 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 97.3 -15.3 |
| Last 30 days | 113.3 +2.3 |