Sunspot region AR12643
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2017/03/22 | 1 | 20 | HRX | N09E72 | |
| 2017/03/23 | 2 | 30 | HSX | N08E56 | |
| 2017/03/24 | 2 | 20 | HRX | N08E42 | |
| 2017/03/25 | 2 | 10 | HRX | N08E29 | |
| 2017/03/26 | 1 | 10 | AXX | N08E16 |
2017/03/22
2017/03/23
2017/03/24
2017/03/25
2017/03/26
|
2017/03/22
2017/03/23
2017/03/24
2017/03/25
2017/03/26
|
| B |
|---|
| 1 |
The top 1 solar flares from sunspot region 12643
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B4.18 | 2017/03/22 | 18:21 | 18:58 | 19:15 |
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
Comet C/2026 A1 (MAPS) for the southern hemisphere 6Solar cycle 25, solar maximum, is it over? 44Filaments and prominences 492Well… here it goes again.. 27Coronal Hole 26 11
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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 | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 1 day |
| 2026 | 1 day (2%) |
| Current stretch | 2 days |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 86.1 -26.5 |
| Last 30 days | 95.9 -24.7 |