Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2884 | S20 | W39 | 01 | 0010 | Alpha | Oct 10, 2021 | Oct 17, 2021 | Oct 31, 2021 |
| № 2883 | N27 | W73 | 01 | 0010 | Alpha | Oct 7, 2021 | Oct 14, 2021 | Oct 28, 2021 |
| № 2882 | N16 | W27 | 03 | 0250 | Beta | 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.
