Sunspot region AR13520
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2023/12/13 | 11 | 210 | CAO | N10W34 | |
| 2023/12/14 | 1 | 120 | HSX | N12W44 | |
| 2023/12/15 | 4 | 60 | CSO | N11W59 | |
| 2023/12/16 | 5 | 80 | CSO | N08W73 | |
| 2023/12/17 | 3 | 40 | CSO | N10W86 | |
| 2023/12/18 | 3 | 40 | CSO | N10W0* |
2023/12/13
2023/12/14
2023/12/15
2023/12/16
2023/12/17
2023/12/18
|
2023/12/13
2023/12/14
2023/12/15
2023/12/16
2023/12/17
2023/12/18
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 13520
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.7 | 2023/12/17 | 04:37 | 04:45 | 04:53 |
Latest news
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
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Tuesday, 11 November 2025
X5.1 solar flare, G4 geomagnetic storm watch
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |