Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 29, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2821 | S22 | W54 | 05 | 0030 | Beta | Apr 26, 2021 | May 3, 2021 | May 16, 2021 |
| № 2820 | S22 | W42 | 06 | 0030 | Beta | Apr 27, 2021 | May 4, 2021 | May 17, 2021 |
| № 2818 | S17 | W37 | 01 | 0010 | Alpha | Apr 27, 2021 | May 4, 2021 | May 18, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to April 2021. The gray background is the average SSN index.
