Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4178 | N09 | W31 | 09 | 0020 | Beta | Aug 10, 2025 | Aug 16, 2025 | Aug 30, 2025 |
| № 4177 | N05 | E38 | 02 | 0010 | Alpha | Aug 15, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4176 | N26 | E19 | 01 | 0010 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4175 | N12 | E37 | 02 | 0030 | Alpha | Aug 15, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4174 | S08 | W57 | 04 | 0030 | Beta | Aug 8, 2025 | Aug 14, 2025 | Aug 28, 2025 |
| № 4173 | S18 | W82 | 03 | 0020 | Beta | Aug 6, 2025 | Aug 12, 2025 | Aug 26, 2025 |
| № 4172 | N09 | W02 | 14 | 0080 | Beta-Gamma | Aug 12, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4171 | N19 | E14 | 01 | 0040 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4169 | N23 | W06 | 02 | 0080 | Alpha | Aug 11, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4168 | N05 | W76 | 05 | 0220 | Beta-Gamma | Aug 6, 2025 | Aug 13, 2025 | Aug 26, 2025 |
| № 4165 | N12 | W74 | 02 | 0120 | Alpha | Aug 6, 2025 | Aug 13, 2025 | Aug 27, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to August 2025. The gray background is the average SSN index.
