Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1876 | N05 | W60 | 02 | 0010 | Beta | Oct 14, 2013 | Oct 21, 2013 | Nov 4, 2013 |
| № 1875 | N07 | E71 | 02 | 0050 | Beta | Oct 24, 2013 | Oct 31, 2013 | Nov 14, 2013 |
| № 1874 | S10 | E24 | 04 | 0020 | Beta | Oct 21, 2013 | Oct 27, 2013 | Nov 10, 2013 |
| № 1873 | N11 | E50 | 10 | 0110 | Beta | Oct 23, 2013 | Oct 29, 2013 | Nov 12, 2013 |
| № 1872 | S17 | E43 | 01 | 0070 | Beta | Oct 22, 2013 | Oct 29, 2013 | Nov 12, 2013 |
| № 1871 | N18 | E23 | 01 | 0020 | Alpha | Oct 21, 2013 | Oct 27, 2013 | Nov 10, 2013 |
| № 1870 | S13 | W47 | 01 | 0010 | Alpha | Oct 15, 2013 | Oct 22, 2013 | Nov 5, 2013 |
| № 1869 | N18 | E18 | 02 | 0020 | Beta | Oct 20, 2013 | Oct 27, 2013 | Nov 10, 2013 |
| № 1867 | N23 | W81 | 01 | 0010 | Alpha | Oct 13, 2013 | Oct 20, 2013 | Nov 2, 2013 |
| № 1865 | S21 | W48 | 04 | 0010 | Beta | Oct 15, 2013 | Oct 22, 2013 | Nov 5, 2013 |
| № 1864 | S23 | W58 | 01 | 0060 | Alpha | Oct 14, 2013 | Oct 21, 2013 | Nov 4, 2013 |
| № 1861 | S08 | W67 | 17 | 0370 | Beta-Gamma | Oct 14, 2013 | Oct 21, 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.
