Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 20, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4313 | S14 | E16 | 01 | 0010 | Alpha | Dec 22, 2025 | Dec 29, 2025 | Jan 12, 2026 |
| № 4312 | N19 | E51 | 01 | 0040 | Alpha | Dec 25, 2025 | Jan 1, 2026 | Jan 15, 2026 |
| № 4311 | N04 | W27 | 01 | 0010 | Alpha | Dec 19, 2025 | Dec 26, 2025 | Jan 8, 2026 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to December 2025. The gray background is the average SSN index.
