Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1872 | S15 | E67 | 01 | 0060 | Alpha | Oct 22, 2013 | Oct 29, 2013 | Nov 12, 2013 |
| № 1871 | N17 | E46 | 01 | 0020 | Alpha | Oct 21, 2013 | Oct 27, 2013 | Nov 10, 2013 |
| № 1870 | S14 | W21 | 08 | 0020 | Beta | Oct 15, 2013 | Oct 22, 2013 | Nov 5, 2013 |
| № 1869 | N20 | E44 | 02 | 0030 | Beta | Oct 20, 2013 | Oct 27, 2013 | Nov 10, 2013 |
| № 1868 | N17 | E23 | 01 | 0010 | Alpha | Oct 19, 2013 | Oct 26, 2013 | Nov 8, 2013 |
| № 1867 | N24 | W56 | 04 | 0020 | Beta | Oct 13, 2013 | Oct 20, 2013 | Nov 3, 2013 |
| № 1865 | S21 | W21 | 11 | 0090 | Beta-Gamma-Delta | Oct 15, 2013 | Oct 22, 2013 | Nov 5, 2013 |
| № 1864 | S23 | W32 | 01 | 0060 | Alpha | Oct 15, 2013 | Oct 21, 2013 | Nov 4, 2013 |
| № 1863 | S17 | W75 | 02 | 0010 | Beta | Oct 11, 2013 | Oct 18, 2013 | Nov 1, 2013 |
| № 1861 | S10 | W45 | 17 | 0480 | Beta | Oct 14, 2013 | Oct 20, 2013 | Nov 3, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to October 2013. The gray background is the average SSN index.
