Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 17, 2026. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4510 | N12 | W68 | 07 | 0030 | Beta | Aug 13, 2026 | Aug 20, 2026 | Sep 2, 2026 |
| № 4508 | N08 | W09 | 03 | 0090 | Beta | Aug 17, 2026 | Aug 24, 2026 | Sep 7, 2026 |
| № 4507 | N04 | W41 | 20 | 0280 | Beta-Gamma | Aug 15, 2026 | Aug 22, 2026 | Sep 4, 2026 |
| № 4506 | N12 | W58 | 06 | 0090 | Beta | Aug 14, 2026 | Aug 20, 2026 | Sep 3, 2026 |
| № 4503 | S17 | W109 | 03 | 0070 | Beta | Aug 10, 2026 | Aug 17, 2026 | Aug 30, 2026 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1997 to August 2026. The gray background is the average SSN index.
