Sunspots and active regions — August 19, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4188 | S09 | E74 | 01 | 0040 | Alpha | Aug 25, 2025 | Sep 1, 2025 | Sep 15, 2025 |
| № 4187 | S18 | E21 | 02 | 0010 | Beta | Aug 21, 2025 | Aug 28, 2025 | Sep 11, 2025 |
| № 4186 | N06 | W89 | 02 | 0040 | Beta | Aug 13, 2025 | Aug 20, 2025 | Sep 2, 2025 |
| № 4182 | N08 | E04 | 01 | 0010 | Alpha | Aug 20, 2025 | Aug 27, 2025 | Sep 9, 2025 |
| № 4180 | S02 | W23 | 06 | 0010 | Beta | Aug 18, 2025 | Aug 25, 2025 | Sep 7, 2025 |
| № 4171 | N18 | W89 | 01 | 0010 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1996, January to 2025, August. Gray background - average solar cycle.
