Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4240 | N16 | E64 | 01 | 0010 | Alpha | Oct 7, 2025 | Oct 14, 2025 | Oct 28, 2025 |
| № 4239 | S10 | W44 | 01 | 0080 | Alpha | Sep 29, 2025 | Oct 6, 2025 | Oct 19, 2025 |
| № 4238 | S14 | W44 | 07 | 0060 | Beta | Sep 29, 2025 | Oct 6, 2025 | Oct 19, 2025 |
| № 4237 | N16 | W22 | 02 | 0010 | Beta | Oct 1, 2025 | Oct 7, 2025 | Oct 21, 2025 |
| № 4236 | N10 | E11 | 21 | 0250 | Beta-Gamma-Delta | Oct 3, 2025 | Oct 10, 2025 | Oct 23, 2025 |
| № 4235 | N27 | E21 | 01 | 0030 | Alpha | Oct 4, 2025 | Oct 11, 2025 | Oct 25, 2025 |
| № 4233 | N17 | E18 | 11 | 0120 | Beta | Oct 4, 2025 | Oct 10, 2025 | Oct 24, 2025 |
| № 4232 | N04 | E19 | 09 | 0250 | Beta-Gamma | Oct 4, 2025 | Oct 10, 2025 | Oct 24, 2025 |
| № 4230 | S11 | W40 | 16 | 0190 | Beta-Gamma-Delta | Sep 29, 2025 | Oct 6, 2025 | Oct 20, 2025 |
| № 4226 | S09 | W65 | 02 | 0090 | Alpha | Sep 27, 2025 | Oct 4, 2025 | Oct 18, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to October 2025. The gray background is the average SSN index.
