Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4243 | N18 | E57 | 04 | 0010 | Beta | Oct 9, 2025 | Oct 16, 2025 | Oct 30, 2025 |
| № 4242 | S11 | E29 | 03 | 0020 | Beta | Oct 7, 2025 | Oct 14, 2025 | Oct 27, 2025 |
| № 4241 | N14 | E21 | 10 | 0030 | Beta | Oct 6, 2025 | Oct 13, 2025 | Oct 27, 2025 |
| № 4238 | S14 | W82 | 02 | 0100 | Beta | Sep 29, 2025 | Oct 5, 2025 | Oct 19, 2025 |
| № 4236 | N10 | W27 | 13 | 0320 | Beta-Gamma | Oct 3, 2025 | Oct 10, 2025 | Oct 23, 2025 |
| № 4235 | N27 | W17 | 01 | 0020 | Alpha | Oct 4, 2025 | Oct 11, 2025 | Oct 25, 2025 |
| № 4233 | N19 | W15 | 05 | 0010 | Alpha | Oct 4, 2025 | Oct 11, 2025 | Oct 24, 2025 |
| № 4232 | N04 | W19 | 18 | 0310 | Beta-Gamma | Oct 3, 2025 | Oct 10, 2025 | Oct 24, 2025 |
| № 4230 | S10 | W78 | 04 | 0200 | Beta-Gamma | Sep 29, 2025 | Oct 6, 2025 | Oct 19, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to October 2025. The gray background is the average SSN index.
