Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2883 | N26 | W89 | 01 | 0010 | Alpha | Oct 7, 2021 | Oct 14, 2021 | Oct 28, 2021 |
| № 2882 | N17 | W44 | 05 | 0270 | Beta-Gamma | Oct 11, 2021 | Oct 18, 2021 | Oct 31, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to October 2021. The gray background is the average SSN index.
