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) | |
|---|---|---|---|---|---|---|---|---|
| № 2669 | N18 | W37 | 01 | 0010 | Alpha | Jul 29, 2017 | Aug 5, 2017 | Aug 19, 2017 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1988, January to 2017, July. Gray background - average solar cycle.
