Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 15, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4309 | S09 | W31 | 02 | 0010 | Beta | Dec 14, 2025 | Dec 20, 2025 | Jan 3, 2026 |
| № 4308 | N06 | E33 | 04 | 0020 | Beta | Dec 18, 2025 | Dec 25, 2025 | Jan 8, 2026 |
| № 4307 | S13 | W32 | 12 | 0070 | Beta | Dec 13, 2025 | Dec 20, 2025 | Jan 3, 2026 |
| № 4305 | S25 | W34 | 05 | 0070 | Alpha | Dec 13, 2025 | Dec 20, 2025 | Jan 3, 2026 |
| № 4304 | N26 | W83 | 05 | 0060 | Beta | Dec 9, 2025 | Dec 16, 2025 | Dec 30, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to December 2025. The gray background is the average SSN index.
