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) | |
|---|---|---|---|---|---|---|---|---|
| № 2880 | N30 | E16 | 04 | 0260 | Beta | Oct 4, 2021 | Oct 11, 2021 | Oct 25, 2021 |
| № 2877 | S20 | W66 | 04 | 0200 | Beta-Gamma | Sep 28, 2021 | Oct 5, 2021 | Oct 19, 2021 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1992, January to 2021, October. Gray background - average solar cycle.
