Active areas
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) | |
|---|---|---|---|---|---|---|---|---|
| № 2672 | N07 | W19 | 12 | 0150 | Beta | Aug 27, 2017 | Sep 3, 2017 | Sep 17, 2017 |
| № 2671 | N13 | W92 | 05 | 0070 | Beta | Aug 22, 2017 | Aug 29, 2017 | Sep 11, 2017 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1988, January to 2017, August. Gray background - average solar cycle.
