
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 41 1 | 0 -1 | B1.52 | C1.78 | 2 |
Region 12891 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -5 | 10 -20 | AXX | N16W64 | |
Solar flares on this day | ||||
| B2.8 B3.7 | ||||
Region 12893 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 1 | 140 -10 | HSX | N17W09 | |
Region 12894 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 5 | 180 80 | CSO | S27E52 | |
Solar flares on this day | ||||
| B6.7 B9.1 B4.5 C1.7 | ||||
All times in UTC
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |