Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 30, 2013. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1854 | N06 | E53 | 03 | 0030 | Beta | Oct 5, 2013 | Oct 12, 2013 | Oct 25, 2013 |
| № 1850 | N10 | W58 | 05 | 0060 | Beta-Gamma | Sep 26, 2013 | Oct 3, 2013 | Oct 17, 2013 |
| № 1846 | S17 | W82 | 01 | 0100 | Alpha | Sep 25, 2013 | Oct 1, 2013 | Oct 15, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to September 2013. The gray background is the average SSN index.
