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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1924 | S13 | W59 | 02 | 0020 | Beta | Dec 9, 2013 | Dec 15, 2013 | Dec 29, 2013 |
| № 1923 | N18 | E14 | 09 | 0010 | Beta | Dec 14, 2013 | Dec 21, 2013 | Jan 4, 2014 |
| № 1922 | N10 | W32 | 08 | 0090 | Beta-Gamma | Dec 11, 2013 | Dec 17, 2013 | Dec 31, 2013 |
| № 1921 | N07 | E50 | 02 | 0350 | Alpha | Dec 17, 2013 | Dec 24, 2013 | Jan 6, 2014 |
| № 1920 | N12 | E44 | 01 | 0090 | Alpha | Dec 16, 2013 | Dec 23, 2013 | Jan 6, 2014 |
| № 1919 | S06 | W52 | 03 | 0020 | Beta | Dec 9, 2013 | Dec 16, 2013 | Dec 29, 2013 |
| № 1918 | S09 | E38 | 07 | 0160 | Beta | Dec 16, 2013 | Dec 23, 2013 | Jan 5, 2014 |
| № 1917 | S15 | E17 | 13 | 0210 | Beta | Dec 14, 2013 | Dec 21, 2013 | Jan 4, 2014 |
| № 1916 | S12 | W78 | 20 | 0320 | Beta-Gamma | Dec 7, 2013 | Dec 14, 2013 | Dec 28, 2013 |
| № 1912 | S21 | W52 | 01 | 0080 | Alpha | Dec 9, 2013 | Dec 16, 2013 | Dec 30, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to December 2013. The gray background is the average SSN index.
