Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2798 | S17 | E48 | 03 | 0060 | Beta | Jan 26, 2021 | Feb 1, 2021 | Feb 15, 2021 |
| № 2797 | S18 | E39 | 02 | 0050 | Alpha | Jan 25, 2021 | Feb 1, 2021 | Feb 14, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to January 2021. The gray background is the average SSN index.
