Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 13, 2025. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 4308 | N08 | E61 | 04 | 0020 | Beta | Dec 18, 2025 | Dec 25, 2025 | Jan 8, 2026 |
| № 4307 | S12 | W03 | 11 | 0050 | Beta-Gamma | Dec 14, 2025 | Dec 20, 2025 | Jan 3, 2026 |
| № 4305 | S25 | W05 | 12 | 0130 | Beta | Dec 13, 2025 | Dec 20, 2025 | Jan 3, 2026 |
| № 4304 | N26 | W61 | 10 | 0090 | Beta | Dec 9, 2025 | Dec 16, 2025 | Dec 30, 2025 |
| № 4299 | N23 | W76 | 04 | 0010 | Beta | Dec 8, 2025 | Dec 15, 2025 | Dec 29, 2025 |
| № 4296 | S15 | W81 | 05 | 0410 | Beta-Gamma | Dec 8, 2025 | Dec 15, 2025 | Dec 28, 2025 |
| № 4294 | S16 | W91 | 08 | 0780 | Beta-Gamma-Delta | Dec 7, 2025 | Dec 14, 2025 | Dec 27, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to December 2025. The gray background is the average SSN index.
