Sunspot region AR13902
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/11/20 | 2 | 70 | CSO | S17E70 | |
| 2024/11/21 | 1 | 70 | HSX | S17E63 | |
| 2024/11/22 | 1 | 70 | HSX | S18E44 | |
| 2024/11/23 | 1 | 60 | HSX | S16E24 | |
| 2024/11/24 | 1 | 60 | HSX | S16E14 | |
| 2024/11/25 | 1 | 60 | HSX | S18E09 | |
| 2024/11/26 | 1 | 40 | HSX | S15W03 | |
| 2024/11/27 | 1 | 40 | HSX | S16W16 | |
| 2024/11/28 | 1 | 40 | HSX | S16W30 | |
| 2024/11/29 | 1 | 40 | HSX | S16W43 | |
| 2024/11/30 | 1 | 10 | HSX | S16W57 |
2024/11/20
2024/11/21
2024/11/22
2024/11/23
2024/11/24
2024/11/25
2024/11/26
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2024/11/20
2024/11/21
2024/11/22
2024/11/23
2024/11/24
2024/11/25
2024/11/26
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 13902
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.4 | 2024/11/25 | 00:05 | 00:09 | 00:13 |
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
CMEs from 2025/10/03 50Incoming & Unnumbered Active Regions 2109Comet C/2025 A6 (Lemmon) 72Coronal Hole 85 2Unspecified geomagnetic activity 3204
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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 |