Sunspot region AR12906
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/12/13 | 4 | 10 | BXO | S29E38 | |
| 2021/12/14 | 4 | 50 | CSO | S28E24 | |
| 2021/12/15 | 4 | 120 | DAO | S29E09 | |
| 2021/12/16 | 9 | 60 | CSO | S29W04 | |
| 2021/12/17 | 7 | 50 | CSO | S29W15 | |
| 2021/12/18 | 4 | 20 | CRO | S29W28 | |
| 2021/12/19 | 1 | 20 | HRX | S31W45 | |
| 2021/12/20 | 1 | 10 | AXX | S29W57 |
2021/12/13
2021/12/14
2021/12/15
2021/12/16
2021/12/17
2021/12/18
2021/12/19
2021/12/20
|
2021/12/13
2021/12/14
2021/12/15
2021/12/16
2021/12/17
2021/12/18
2021/12/19
2021/12/20
|
| B | C |
|---|---|
| 11 | 1 |
The top 10 solar flares from sunspot region 12906
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.6 | 2021/12/14 | 21:55 | 22:06 | 22:12 | |
| 2 | B8.0 | 2021/12/14 | 15:23 | 15:30 | 15:39 | |
| 3 | B5.9 | 2021/12/14 | 18:19 | 18:30 | 18:39 | |
| 4 | B4.9 | 2021/12/14 | 06:35 | 06:42 | 06:51 | |
| 5 | B4.2 | 2021/12/14 | 10:08 | 10:18 | 10:22 | |
| 6 | B4.1 | 2021/12/14 | 11:29 | 11:38 | 11:46 | |
| 7 | B3.9 | 2021/12/14 | 10:37 | 10:43 | 10:47 | |
| 8 | B3.6 | 2021/12/14 | 07:48 | 07:55 | 07:59 | |
| 9 | B3.5 | 2021/12/14 | 12:16 | 12:19 | 12:23 | |
| 10 | B3.2 | 2021/12/14 | 12:53 | 13:00 | 13:24 |
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2026/01/14 | M1.6 |
| Last geomagnetic storm | 2026/01/11 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 91.4 -32.6 |
| Last 30 days | 97.9 -8.3 |