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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 7, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1916 | S13 | W10 | 21 | 0200 | Beta-Gamma | Dec 7, 2013 | Dec 14, 2013 | Dec 28, 2013 |
| № 1915 | S30 | W48 | 10 | 0030 | Beta | Dec 4, 2013 | Dec 11, 2013 | Dec 25, 2013 |
| № 1912 | S21 | E17 | 01 | 0130 | Beta | Dec 9, 2013 | Dec 16, 2013 | Dec 30, 2013 |
| № 1911 | S11 | W64 | 01 | 0010 | Alpha | Dec 3, 2013 | Dec 10, 2013 | Dec 24, 2013 |
| № 1909 | S17 | W50 | 10 | 0140 | Beta | Dec 4, 2013 | Dec 11, 2013 | Dec 25, 2013 |
| № 1908 | S25 | W79 | 02 | 0040 | Alpha | Dec 2, 2013 | Dec 9, 2013 | Dec 23, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to December 2013. The gray background is the average SSN index.
