Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4179 | S11 | E52 | 02 | 0050 | Beta | Aug 17, 2025 | Aug 24, 2025 | Sep 6, 2025 |
| № 4178 | N09 | W49 | 12 | 0210 | Beta | Aug 9, 2025 | Aug 16, 2025 | Aug 30, 2025 |
| № 4177 | N04 | E21 | 01 | 0020 | Alpha | Aug 15, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4176 | N25 | E03 | 01 | 0010 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4175 | N12 | E20 | 02 | 0020 | Alpha | Aug 15, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4174 | S09 | W74 | 02 | 0020 | Beta | Aug 7, 2025 | Aug 14, 2025 | Aug 28, 2025 |
| № 4172 | N08 | W18 | 20 | 0140 | Beta-Gamma | Aug 12, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4171 | N19 | W01 | 01 | 0040 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4169 | N21 | W21 | 02 | 0060 | Alpha | Aug 11, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4168 | N05 | W94 | 03 | 0070 | Beta | Aug 6, 2025 | Aug 13, 2025 | Aug 26, 2025 |
| № 4165 | N11 | W92 | 01 | 0120 | Alpha | Aug 6, 2025 | Aug 13, 2025 | Aug 26, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to August 2025. The gray background is the average SSN index.
