Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1831 | N14 | W34 | 03 | 0030 | Beta | Aug 20, 2013 | Aug 27, 2013 | Sep 10, 2013 |
| № 1830 | S06 | W37 | 03 | 0010 | Beta | Aug 20, 2013 | Aug 27, 2013 | Sep 10, 2013 |
| № 1829 | N06 | W60 | 05 | 0040 | Beta | Aug 18, 2013 | Aug 25, 2013 | Sep 8, 2013 |
| № 1828 | N15 | E41 | 03 | 0040 | Beta | Aug 26, 2013 | Sep 2, 2013 | Sep 16, 2013 |
| № 1827 | S18 | E32 | 08 | 0130 | Beta | Aug 25, 2013 | Sep 1, 2013 | Sep 15, 2013 |
| № 1825 | N15 | W55 | 05 | 0070 | Beta | Aug 19, 2013 | Aug 26, 2013 | Sep 8, 2013 |
| № 1824 | S12 | W70 | 01 | 0010 | Alpha | Aug 18, 2013 | Aug 25, 2013 | Sep 7, 2013 |
| № 1823 | S07 | W10 | 05 | 0120 | Beta | Aug 22, 2013 | Aug 29, 2013 | Sep 12, 2013 |
| № 1820 | S12 | W47 | 15 | 0130 | Beta-Gamma | Aug 19, 2013 | Aug 26, 2013 | Sep 9, 2013 |
| № 1818 | S06 | W91 | 01 | 0150 | Alpha | Aug 16, 2013 | Aug 23, 2013 | Sep 5, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to August 2013. The gray background is the average SSN index.
