Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 20, 2006. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 917 | S05 | W03 | 04 | 0030 | Beta | Oct 21, 2006 | Oct 27, 2006 | Nov 10, 2006 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1977 to October 2006. The gray background is the average SSN index.
