Sunspot region AR10521
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2003/12/11 | 2 | 60 | DAO | S11E82 | |
| 2003/12/12 | 3 | 110 | DSO | S11E63 | |
| 2003/12/13 | 4 | 90 | CSO | S12E48 | |
| 2003/12/14 | 4 | 80 | DSO | S12E34 | |
| 2003/12/15 | 4 | 50 | DSO | S12E21 | |
| 2003/12/16 | 3 | 40 | DSO | S12E09 | |
| 2003/12/17 | 6 | 50 | DSO | S11W05 | |
| 2003/12/18 | 5 | 20 | CRO | S11W20 | |
| 2003/12/19 | 3 | 20 | HSX | S12W34 | |
| 2003/12/20 | 2 | 10 | BXO | S12W47 |
| C |
|---|
| 1 |
The top 1 solar flares from sunspot region 10521
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.46 | 2003/12/17 | 13:03 | 13:09 | 13:16 |
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
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| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.4 -4.6 |
| Last 30 days | 121.8 +8.9 |