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) | |
|---|---|---|---|---|---|---|---|---|
| № 2863 | S16 | E29 | 07 | 0070 | Beta | Sep 6, 2021 | Sep 13, 2021 | Sep 27, 2021 |
| № 2860 | S29 | W76 | 06 | 0220 | Beta | Aug 29, 2021 | Sep 5, 2021 | Sep 19, 2021 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1992, January to 2021, September. Gray background - average solar cycle.
