Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 3, 2021. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2880 | N32 | E05 | 03 | 0230 | Beta | Oct 4, 2021 | Oct 11, 2021 | Oct 26, 2021 |
| № 2877 | S20 | W77 | 02 | 0150 | Beta | Sep 28, 2021 | Oct 5, 2021 | Oct 19, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to October 2021. The gray background is the average SSN index.
