Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 15, 2010. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1099 | N18 | W58 | 08 | 0070 | Beta | Aug 12, 2010 | Aug 18, 2010 | Sep 1, 2010 |
| № 1093 | N11 | W65 | 03 | 0080 | Alpha | Aug 11, 2010 | Aug 18, 2010 | Aug 31, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to August 2010. The gray background is the average SSN index.