Sunspots and active regions — January 21, 2021
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2798 | S17 | E46 | 03 | 0060 | Beta | Jan 26, 2021 | Feb 1, 2021 | Feb 15, 2021 |
| № 2797 | S18 | E37 | 02 | 0050 | Alpha | Jan 25, 2021 | Feb 1, 2021 | Feb 14, 2021 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1992, January to 2021, January. Gray background - average solar cycle.
