Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2578 | N09 | E35 | 02 | 0010 | Alpha | Aug 21, 2016 | Aug 28, 2016 | Sep 11, 2016 |
| № 2577 | N04 | W48 | 01 | 0010 | Alpha | Aug 15, 2016 | Aug 22, 2016 | Sep 5, 2016 |
| № 2576 | S12 | W41 | 03 | 0060 | Alpha | Aug 16, 2016 | Aug 23, 2016 | Sep 5, 2016 |
| № 2574 | N05 | W56 | 03 | 0100 | Alpha | Aug 15, 2016 | Aug 21, 2016 | Sep 4, 2016 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1987 to August 2016. The gray background is the average SSN index.
