Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2586 | N05 | W31 | 01 | 0010 | Alpha | Sep 3, 2016 | Sep 9, 2016 | Sep 23, 2016 |
| № 2585 | N08 | E33 | 14 | 0590 | Beta-Gamma | Sep 7, 2016 | Sep 14, 2016 | Sep 28, 2016 |
| № 2581 | N13 | W90 | 01 | 0090 | Alpha | Aug 29, 2016 | Sep 5, 2016 | Sep 18, 2016 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1987 to September 2016. The gray background is the average SSN index.
