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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 16, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1926 | N09 | W12 | 07 | 0010 | Beta | Dec 16, 2013 | Dec 23, 2013 | Jan 5, 2014 |
| № 1925 | S07 | E30 | 03 | 0020 | Alpha | Dec 19, 2013 | Dec 26, 2013 | Jan 8, 2014 |
| № 1923 | N17 | W35 | 10 | 0030 | Beta | Dec 14, 2013 | Dec 21, 2013 | Jan 4, 2014 |
| № 1922 | N10 | W82 | 02 | 0040 | Beta | Dec 11, 2013 | Dec 17, 2013 | Dec 31, 2013 |
| № 1921 | N07 | W01 | 09 | 0400 | Alpha | Dec 17, 2013 | Dec 24, 2013 | Jan 6, 2014 |
| № 1920 | N13 | W05 | 03 | 0050 | Alpha | Dec 16, 2013 | Dec 23, 2013 | Jan 6, 2014 |
| № 1918 | S10 | W13 | 11 | 0170 | Beta-Gamma | Dec 16, 2013 | Dec 23, 2013 | Jan 5, 2014 |
| № 1917 | S15 | W35 | 33 | 0340 | Beta-Gamma | Dec 14, 2013 | Dec 21, 2013 | Jan 4, 2014 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to December 2013. The gray background is the average SSN index.
