Sunspots and active regions — August 12, 2025
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 4179 | S11 | E54 | 02 | 0050 | Beta | Aug 17, 2025 | Aug 24, 2025 | Sep 6, 2025 |
| № 4178 | N09 | W47 | 12 | 0210 | Beta | Aug 9, 2025 | Aug 16, 2025 | Aug 30, 2025 |
| № 4177 | N04 | E23 | 01 | 0020 | Alpha | Aug 15, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4176 | N25 | E05 | 01 | 0010 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4175 | N12 | E22 | 02 | 0020 | Alpha | Aug 15, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4174 | S09 | W72 | 02 | 0020 | Beta | Aug 7, 2025 | Aug 14, 2025 | Aug 28, 2025 |
| № 4172 | N08 | W16 | 20 | 0140 | Beta-Gamma | Aug 12, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4171 | N19 | E01 | 01 | 0040 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4169 | N21 | W19 | 02 | 0060 | Alpha | Aug 11, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4168 | N05 | W92 | 03 | 0070 | Beta | Aug 6, 2025 | Aug 13, 2025 | Aug 26, 2025 |
| № 4165 | N11 | W90 | 01 | 0120 | Alpha | Aug 6, 2025 | Aug 13, 2025 | Aug 26, 2025 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1996, January to 2025, August. Gray background - average solar cycle.
