Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 13, 2005. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 797 | S13 | E42 | 12 | 0060 | Beta | Aug 17, 2005 | Aug 24, 2005 | Sep 7, 2005 |
| № 795 | N10 | W79 | 04 | 0030 | Beta | Aug 8, 2005 | Aug 15, 2005 | Aug 28, 2005 |
| № 794 | S14 | W89 | 01 | 0120 | Alpha | Aug 7, 2005 | Aug 14, 2005 | Aug 28, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to August 2005. The gray background is the average SSN index.
