Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1838 | S05 | E43 | 01 | 0030 | Alpha | Sep 12, 2013 | Sep 19, 2013 | Oct 2, 2013 |
| № 1837 | S17 | W86 | 02 | 0050 | Alpha | Sep 2, 2013 | Sep 9, 2013 | Sep 23, 2013 |
| № 1836 | N10 | W76 | 02 | 0090 | Beta | Sep 3, 2013 | Sep 10, 2013 | Sep 23, 2013 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1984, January to 2013, September. Gray background - average solar cycle.
