Active areas
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) | |
|---|---|---|---|---|---|---|---|---|
| № 2808 | N19 | E18 | 02 | 0010 | Alpha | Mar 16, 2021 | Mar 23, 2021 | Apr 6, 2021 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1992, January to 2021, March. Gray background - average solar cycle.
