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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1858 | N09 | W65 | 04 | 0050 | Beta | Sep 30, 2013 | Oct 7, 2013 | Oct 20, 2013 |
| № 1857 | S08 | E56 | 01 | 0100 | Alpha | Oct 9, 2013 | Oct 16, 2013 | Oct 29, 2013 |
| № 1856 | N07 | E58 | 02 | 0070 | Beta | Oct 9, 2013 | Oct 16, 2013 | Oct 30, 2013 |
| № 1855 | S13 | W24 | 14 | 0090 | Beta | Oct 3, 2013 | Oct 10, 2013 | Oct 23, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to October 2013. The gray background is the average SSN index.
