Sunspot region AR13940
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/12/27 | 1 | 5 | AXX | S10E38 | |
| 2024/12/28 | 1 | 10 | AXX | S05E23 | |
| 2024/12/29 | 1 | 10 | AXX | S06E23 | |
| 2024/12/30 | 15 | 100 | AXX | S06E14 |
2024/12/27
2024/12/28
2024/12/29
2024/12/30
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2024/12/27
2024/12/28
2024/12/29
2024/12/30
|
| M |
|---|
| 3 |
The top 3 solar flares from sunspot region 13940
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.7 | 2024/12/30 | 02:50 | 03:00 | 03:08 | |
| 2 | M1.5 | 2024/12/29 | 17:58 | 18:04 | 18:08 | |
| 3 | M1.22 | 2024/12/29 | 03:56 | 04:05 | 04:14 |
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Latest forum messages
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/21 | M1.3 |
| Last geomagnetic storm | 2025/12/22 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 114.8 +23 |
| Last 30 days | 109.3 +22.9 |