Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2546 | S07 | E44 | 02 | 0540 | Alpha | May 21, 2016 | May 28, 2016 | Jun 11, 2016 |
| № 2545 | S20 | W78 | 02 | 0020 | Beta | May 12, 2016 | May 19, 2016 | Jun 2, 2016 |
| № 2544 | N20 | W26 | 20 | 0160 | Beta-Gamma | May 16, 2016 | May 23, 2016 | Jun 6, 2016 |
| № 2543 | S05 | W90 | 01 | 0010 | Alpha | May 11, 2016 | May 18, 2016 | May 31, 2016 |
| № 2542 | N11 | W89 | 01 | 0030 | Alpha | May 11, 2016 | May 18, 2016 | Jun 1, 2016 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1987 to May 2016. The gray background is the average SSN index.
