Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1006 | S26 | W81 | 01 | 0030 | Alpha | Oct 13, 2008 | Oct 20, 2008 | Nov 3, 2008 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1979 to October 2008. The gray background is the average SSN index.
