Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 9, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4177 | N05 | E57 | 01 | 0020 | Alpha | Aug 14, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4176 | N26 | E43 | 04 | 0020 | Beta | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4175 | N12 | E57 | 02 | 0020 | Alpha | Aug 14, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4174 | S08 | W33 | 01 | 0010 | Alpha | Aug 8, 2025 | Aug 14, 2025 | Aug 28, 2025 |
| № 4173 | S18 | W58 | 03 | 0020 | Beta | Aug 6, 2025 | Aug 13, 2025 | Aug 26, 2025 |
| № 4172 | N08 | E23 | 14 | 0140 | Beta-Gamma | Aug 12, 2025 | Aug 19, 2025 | Sep 1, 2025 |
| № 4171 | N18 | E35 | 01 | 0030 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 2, 2025 |
| № 4170 | S16 | W84 | 04 | 0080 | Beta | Aug 4, 2025 | Aug 11, 2025 | Aug 24, 2025 |
| № 4169 | N23 | E16 | 07 | 0110 | Beta | Aug 11, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4168 | N05 | W53 | 17 | 0350 | Beta-Gamma-Delta | Aug 6, 2025 | Aug 13, 2025 | Aug 26, 2025 |
| № 4165 | N11 | W53 | 02 | 0150 | Alpha | Aug 6, 2025 | Aug 13, 2025 | Aug 27, 2025 |
| № 4161 | S15 | W88 | 01 | 0060 | Beta | Aug 3, 2025 | Aug 10, 2025 | Aug 24, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to August 2025. The gray background is the average SSN index.
