Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 909 | S11 | W28 | 10 | 0080 | Beta | Sep 10, 2006 | Sep 17, 2006 | Sep 30, 2006 |
| № 908 | S14 | E08 | 05 | 0230 | Beta | Sep 12, 2006 | Sep 19, 2006 | Oct 3, 2006 |
| № 907 | S12 | W18 | 05 | 0010 | Beta | Sep 10, 2006 | Sep 17, 2006 | Oct 1, 2006 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1977 to September 2006. The gray background is the average SSN index.
