Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 16, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4221 | N04 | E57 | 03 | 0020 | Beta | Sep 21, 2025 | Sep 28, 2025 | Oct 12, 2025 |
| № 4220 | S18 | E28 | 04 | 0010 | Beta | Sep 19, 2025 | Sep 26, 2025 | Oct 10, 2025 |
| № 4219 | N26 | W16 | 06 | 0020 | Beta | Sep 16, 2025 | Sep 23, 2025 | Oct 7, 2025 |
| № 4218 | N14 | W86 | 04 | 0060 | Beta | Sep 10, 2025 | Sep 17, 2025 | Oct 1, 2025 |
| № 4217 | S17 | E58 | 06 | 0200 | Beta | Sep 21, 2025 | Sep 28, 2025 | Oct 12, 2025 |
| № 4216 | N10 | E24 | 11 | 0210 | Beta | Sep 19, 2025 | Sep 26, 2025 | Oct 9, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to September 2025. The gray background is the average SSN index.
