Sunspot region AR13920
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/12/08 | 6 | 90 | CSI | N22E52 | |
| 2024/12/09 | 6 | 70 | CSO | N22E38 | |
| 2024/12/10 | 12 | 60 | DSO | N22E24 | |
| 2024/12/11 | 21 | 250 | EKI | N23E12 | |
| 2024/12/12 | 18 | 200 | EAI | N22W04 | |
| 2024/12/13 | 14 | 260 | EKI | N22W16 | |
| 2024/12/14 | 12 | 180 | EAO | N23W27 | |
| 2024/12/15 | 6 | 160 | EAO | N22W41 | |
| 2024/12/16 | 5 | 140 | DAO | N24W57 | |
| 2024/12/17 | 1 | 90 | HSX | N22W67 | |
| 2024/12/18 | 1 | 60 | HSX | N22W81 | |
| 2024/12/19 | 1 | 40 | HSX | N22W93 | |
| 2024/12/20 | 1 | 40 | HSX | N22W0* |
2024/12/08
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2024/12/15
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2024/12/08
2024/12/09
2024/12/10
2024/12/11
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2024/12/13
2024/12/14
2024/12/15
2024/12/16
2024/12/17
2024/12/18
2024/12/19
2024/12/20
|
| C | M |
|---|---|
| 23 | 2 |
The top 10 solar flares from sunspot region 13920
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M3.11 | 2024/12/15 | 20:15 | 20:24 | 20:28 | |
| 2 | M2.8 | 2024/12/11 | 10:03 | 10:06 | 10:10 | |
| 3 | C6.8 | 2024/12/11 | 03:19 | 03:26 | 03:30 | |
| 4 | C4.0 | 2024/12/15 | 01:09 | 01:17 | 01:21 | |
| 5 | C3.8 | 2024/12/11 | 11:16 | 11:20 | 11:24 | |
| 6 | C3.7 | 2024/12/15 | 00:33 | 01:07 | 01:09 | |
| 7 | C3.5 | 2024/12/10 | 22:53 | 22:58 | 23:02 | |
| 8 | C3.3 | 2024/12/10 | 17:43 | 17:49 | 17:54 | |
| 9 | C3.1 | 2024/12/11 | 02:08 | 02:12 | 02:16 | |
| 10 | C2.8 | 2024/12/10 | 14:36 | 14:43 | 14:47 |
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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 |