Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 26, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2872 | N18 | W24 | 09 | 0060 | Beta | Sep 25, 2021 | Oct 2, 2021 | Oct 16, 2021 |
| № 2871 | S28 | W13 | 09 | 0140 | Beta | Sep 26, 2021 | Oct 3, 2021 | Oct 17, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to September 2021. The gray background is the average SSN index.
