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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 26, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1851 | S20 | E32 | 01 | 0010 | Alpha | Sep 29, 2013 | Oct 6, 2013 | Oct 20, 2013 |
| № 1850 | N08 | W01 | 14 | 0070 | Beta | Sep 27, 2013 | Oct 4, 2013 | Oct 17, 2013 |
| № 1849 | N21 | W51 | 05 | 0030 | Beta | Sep 23, 2013 | Sep 30, 2013 | Oct 14, 2013 |
| № 1846 | S17 | W29 | 01 | 0160 | 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.
