Sunspots and active regions — March 15, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2809 | S22 | W26 | 03 | 0020 | Beta | Mar 14, 2021 | Mar 21, 2021 | Apr 4, 2021 |
| № 2808 | N19 | E04 | 01 | 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.
