Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2820 | S22 | E10 | 11 | 0070 | Beta | Apr 27, 2021 | May 4, 2021 | May 17, 2021 |
| № 2819 | N24 | W25 | 03 | 0010 | Beta | Apr 24, 2021 | May 1, 2021 | May 15, 2021 |
| № 2818 | S16 | E14 | 01 | 0040 | Alpha | Apr 27, 2021 | May 4, 2021 | May 17, 2021 |
| № 2816 | S24 | W42 | 07 | 0030 | Beta | Apr 23, 2021 | Apr 30, 2021 | May 13, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to April 2021. The gray background is the average SSN index.
