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
Thursday, 11 September 2025
Coronal hole faces Earth
Sunday, 31 August 2025
M2.7 solar flare with earth-directed CME!
Tuesday, 5 August 2025
M4.4 solar flare from sunspot region 4168
Latest forum messages
Coronal Hole 85 2CMEs from 2025/10/03 47Unspecified geomagnetic activity 3204Incoming & Unnumbered Active Regions 2108MODELO MAGNETOSFERA 3
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |