
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 43 -17 | 0 -1 | B1.76 | C1.78 | 2 |
Region 12835 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 -10 | 470 -70 | CKO | S19W70 | |
Solar flares on this day | ||||
| B5.1 C1.2 | ||||
Region 12837 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -7 | 10 -10 | BXO | N17W22 | |
Region 12839 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 50 20 | CAO | N19E24 | |
Solar flares on this day | ||||
| B4.6 | ||||
All times in UTC
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/09 | M2.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 107.4 +11.4 |