Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 9, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1918 | S09 | E76 | 03 | 0060 | Alpha | Dec 16, 2013 | Dec 23, 2013 | Jan 5, 2014 |
| № 1917 | S16 | E57 | 08 | 0210 | Beta | Dec 14, 2013 | Dec 21, 2013 | Jan 4, 2014 |
| № 1916 | S13 | W37 | 20 | 0240 | Beta-Gamma | Dec 7, 2013 | Dec 14, 2013 | Dec 28, 2013 |
| № 1912 | S21 | W12 | 01 | 0120 | Alpha | Dec 9, 2013 | Dec 16, 2013 | Dec 30, 2013 |
| № 1909 | S19 | W79 | 01 | 0050 | Alpha | Dec 4, 2013 | Dec 11, 2013 | Dec 25, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to December 2013. The gray background is the average SSN index.
