Sunspot region AR12920
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/12/26 | 9 | 30 | CRO | S17W31 | |
| 2021/12/27 | 8 | 70 | CAO | S17W45 | |
| 2021/12/28 | 8 | 70 | BXO | S16W57 | |
| 2021/12/29 | 6 | 10 | AXX | S17W70 |
2021/12/26
2021/12/27
2021/12/28
2021/12/29
|
2021/12/26
2021/12/27
2021/12/28
2021/12/29
|
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 12920
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.4 | 2021/12/26 | 18:46 | 18:59 | 19:10 |
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Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/01/21 | M3.3 |
| Last geomagnetic storm | 2025/01/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2024 | 154.5 +2 |
| January 2025 | 145.2 -9.3 |
| Last 30 days | 163.2 +45.8 |