Sunspot region AR13997
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2025/02/15 | 5 | 30 | CAO | N03E42 | |
| 2025/02/16 | 56 | 40 | CAI | N03E27 | |
| 2025/02/17 | 10 | 50 | CAI | N03E13 | |
| 2025/02/18 | 8 | 30 | CAO | N03E01 | |
| 2025/02/19 | 3 | 10 | BXO | N03W12 | |
| 2025/02/20 | 3 | 10 | BXO | N03W25 | |
| 2025/02/21 | 2 | 10 | BXO | N03W40 | |
| 2025/02/22 | 2 | 10 | BXO | N03W55 |
2025/02/15
2025/02/16
2025/02/17
2025/02/18
2025/02/19
2025/02/20
2025/02/21
2025/02/22
|
2025/02/15
2025/02/16
2025/02/17
2025/02/18
2025/02/19
2025/02/20
2025/02/21
2025/02/22
|
| C |
|---|
| 5 |
The top 5 solar flares from sunspot region 13997
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C5.7 | 2025/02/17 | 14:46 | 14:55 | 15:07 | |
| 2 | C4.2 | 2025/02/19 | 10:41 | 10:49 | 10:58 | |
| 3 | C2.3 | 2025/02/15 | 00:22 | 00:31 | 00:34 | |
| 4 | C2.0 | 2025/02/16 | 20:25 | 20:29 | 20:35 | |
| 5 | C1.7 | 2025/02/14 | 22:27 | 22:35 | 22:52 |
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 |