Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 31, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2828 | S32 | E35 | 02 | 0010 | Alpha | Jun 4, 2021 | Jun 11, 2021 | Jun 25, 2021 |
| № 2827 | N11 | E31 | 05 | 0060 | Beta | Jun 3, 2021 | Jun 10, 2021 | Jun 24, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to May 2021. The gray background is the average SSN index.
