Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 16, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4186 | N07 | W47 | 03 | 0040 | Beta | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4185 | N17 | W49 | 04 | 0010 | Beta | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4184 | S19 | W50 | 02 | 0020 | Beta | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4183 | S02 | W74 | 03 | 0010 | Beta | Aug 11, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4182 | N09 | E42 | 01 | 0020 | Alpha | Aug 20, 2025 | Aug 27, 2025 | Sep 10, 2025 |
| № 4181 | S11 | W54 | 01 | 0010 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 2, 2025 |
| № 4180 | S02 | E16 | 07 | 0040 | Beta | Aug 18, 2025 | Aug 25, 2025 | Sep 7, 2025 |
| № 4179 | S10 | E01 | 04 | 0030 | Beta | Aug 17, 2025 | Aug 24, 2025 | Sep 6, 2025 |
| № 4177 | N05 | W33 | 01 | 0020 | Alpha | Aug 15, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4175 | N13 | W34 | 01 | 0010 | Alpha | Aug 14, 2025 | Aug 21, 2025 | Sep 4, 2025 |
| № 4172 | N09 | W73 | 09 | 0160 | Beta-Gamma | Aug 11, 2025 | Aug 18, 2025 | Sep 1, 2025 |
| № 4171 | N19 | W52 | 01 | 0030 | Alpha | Aug 13, 2025 | Aug 20, 2025 | Sep 3, 2025 |
| № 4169 | N22 | W72 | 01 | 0040 | Alpha | Aug 11, 2025 | Aug 18, 2025 | Sep 1, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to August 2025. The gray background is the average SSN index.
