Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 9, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2806 | S31 | W75 | 02 | 0020 | Beta | Mar 4, 2021 | Mar 11, 2021 | Mar 25, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to March 2021. The gray background is the average SSN index.
