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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1819 | S20 | E33 | 02 | 0010 | Beta | Aug 16, 2013 | Aug 23, 2013 | Sep 5, 2013 |
| № 1818 | S08 | E43 | 09 | 0060 | Beta-Gamma | Aug 17, 2013 | Aug 23, 2013 | Sep 6, 2013 |
| № 1817 | S22 | E18 | 12 | 0050 | Beta | Aug 15, 2013 | Aug 22, 2013 | Sep 4, 2013 |
| № 1814 | S27 | E05 | 01 | 0030 | Alpha | Aug 14, 2013 | Aug 21, 2013 | Sep 4, 2013 |
| № 1813 | S14 | W64 | 05 | 0020 | Beta | Aug 8, 2013 | Aug 15, 2013 | Aug 29, 2013 |
| № 1809 | N11 | W86 | 01 | 0010 | Alpha | Aug 7, 2013 | Aug 14, 2013 | Aug 27, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to August 2013. The gray background is the average SSN index.
