Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4161 | S13 | E75 | 01 | 0120 | Alpha | Aug 4, 2025 | Aug 10, 2025 | Aug 24, 2025 |
| № 4160 | S08 | E34 | 01 | 0030 | Alpha | Aug 1, 2025 | Aug 7, 2025 | Aug 21, 2025 |
| № 4157 | S19 | E15 | 01 | 0050 | Alpha | Jul 30, 2025 | Aug 6, 2025 | Aug 20, 2025 |
| № 4156 | N08 | E19 | 01 | 0010 | Alpha | Jul 30, 2025 | Aug 6, 2025 | Aug 20, 2025 |
| № 4155 | S08 | E19 | 15 | 0060 | Beta | Jul 30, 2025 | Aug 6, 2025 | Aug 20, 2025 |
| № 4154 | S12 | E05 | 03 | 0030 | Beta | Jul 29, 2025 | Aug 5, 2025 | Aug 19, 2025 |
| № 4153 | S28 | W07 | 08 | 0160 | Beta | Jul 28, 2025 | Aug 4, 2025 | Aug 19, 2025 |
| № 4150 | S17 | W42 | 01 | 0050 | Alpha | Jul 26, 2025 | Aug 2, 2025 | Aug 15, 2025 |
| № 4149 | N15 | W37 | 05 | 0150 | Beta | Jul 26, 2025 | Aug 2, 2025 | Aug 16, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to July 2025. The gray background is the average SSN index.
