Sunspot region AR10231
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/12/20 | 2 | 20 | CSO | S25E13 | |
| 2002/12/21 | 5 | 20 | DSO | S25E00 | |
| 2002/12/22 | 6 | 30 | CAO | S25W13 | |
| 2002/12/23 | 10 | 50 | DAO | S25W26 | |
| 2002/12/24 | 6 | 50 | DAO | S25W39 | |
| 2002/12/25 | 5 | 50 | DAO | S25W53 | |
| 2002/12/26 | 4 | 60 | CAO | S25W62 | |
| 2002/12/27 | 3 | 110 | CSO | S24W77 | |
| 2002/12/28 | 4 | 50 | CSO | S25W89 |
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 10231
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C2.33 | 2002/12/23 | 15:20 | 15:24 | 15:26 |
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |