Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 27, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1853 | N19 | W80 | 03 | 0020 | Beta | Sep 22, 2013 | Sep 29, 2013 | Oct 13, 2013 |
| № 1852 | S21 | W70 | 03 | 0010 | Beta | Sep 23, 2013 | Sep 30, 2013 | Oct 13, 2013 |
| № 1850 | N10 | W18 | 16 | 0180 | Beta | Sep 27, 2013 | Oct 3, 2013 | Oct 17, 2013 |
| № 1846 | S18 | W44 | 01 | 0130 | Alpha | Sep 25, 2013 | Oct 2, 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.
