
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 103 -12 | 1 1 | B6.43 | C4.09 | 8 |
Region 12303 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -3 | 80 -20 | CAO | N20W42 | |
Region 12305 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 26 11 | 400 60 | EKC | S08E19 | |
Solar flares on this day | ||||
| C4.06 C1.24 B9.51 C1.16 C2.07 | ||||
Region 12307 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 3 | 20 10 | CRO | S18W17 | |
Region 12308 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 50 | HSX | N15W88 | |
Region 12310 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -2 | 20 | CAO | N06E27 | |
Region 12312 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 2 | 30 | CAO | N08E38 | |
Solar flares on this day | ||||
| B8.9 B8.1 C1.06 | ||||
Region 12313 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 50 20 | HSX | N17E50 | |
All times in UTC
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/20 | M1.0 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 118.5 +26.7 |
| Last 30 days | 108.7 +20.4 |