Sunspots and active regions — August 20, 2017
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) | |
|---|---|---|---|---|---|---|---|---|
| № 2671 | N12 | E10 | 23 | 0360 | Beta-Gamma | Aug 22, 2017 | Aug 28, 2017 | Sep 11, 2017 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1988, January to 2017, August. Gray background - average solar cycle.
