Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2803 | N21 | E49 | 02 | 0010 | Alpha | Feb 26, 2021 | Mar 5, 2021 | Mar 18, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to February 2021. The gray background is the average SSN index.
