Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4257 | S08 | E76 | 01 | 0060 | Alpha | Oct 25, 2025 | Oct 31, 2025 | Nov 14, 2025 |
| № 4256 | S15 | E53 | 06 | 0060 | Beta | Oct 23, 2025 | Oct 30, 2025 | Nov 12, 2025 |
| № 4255 | S08 | E27 | 02 | 0010 | Beta | Oct 21, 2025 | Oct 28, 2025 | Nov 10, 2025 |
| № 4254 | N11 | E34 | 01 | 0060 | Alpha | Oct 21, 2025 | Oct 28, 2025 | Nov 11, 2025 |
| № 4252 | S13 | E02 | 03 | 0100 | Beta | Oct 19, 2025 | Oct 26, 2025 | Nov 9, 2025 |
| № 4250 | N04 | W44 | 01 | 0010 | Alpha | Oct 16, 2025 | Oct 22, 2025 | Nov 5, 2025 |
| № 4248 | N07 | W53 | 10 | 0380 | Beta-Gamma | Oct 15, 2025 | Oct 22, 2025 | Nov 4, 2025 |
| № 4246 | N24 | W80 | 16 | 0700 | Beta-Gamma-Delta | Oct 13, 2025 | Oct 20, 2025 | Nov 3, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to October 2025. The gray background is the average SSN index.
