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) | |
|---|---|---|---|---|---|---|---|---|
| № 2882 | N14 | E78 | 01 | 0180 | Alpha | Oct 11, 2021 | Oct 18, 2021 | Oct 31, 2021 |
| № 2880 | N31 | W06 | 06 | 0230 | Beta | Oct 4, 2021 | Oct 12, 2021 | Oct 26, 2021 |
| № 2877 | S21 | W92 | 01 | 0030 | Alpha | 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.
