Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 21, 2016. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2547 | S17 | W41 | 03 | 0010 | Beta | May 19, 2016 | May 26, 2016 | Jun 8, 2016 |
| № 2546 | S07 | W06 | 09 | 0520 | Beta | May 21, 2016 | May 28, 2016 | Jun 11, 2016 |
| № 2544 | N22 | W82 | 01 | 0080 | Alpha | May 16, 2016 | May 23, 2016 | Jun 5, 2016 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1987 to May 2016. The gray background is the average SSN index.
