Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 21, 2008. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1000 | S12 | W03 | 01 | 0010 | Alpha | Jul 22, 2008 | Jul 28, 2008 | Aug 11, 2008 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1979 to July 2008. The gray background is the average SSN index.
