Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 906 | S09 | W65 | 10 | 0100 | Beta | Aug 29, 2006 | Sep 5, 2006 | Sep 18, 2006 |
| № 905 | S08 | W81 | 02 | 0090 | Alpha | Aug 28, 2006 | Sep 4, 2006 | Sep 17, 2006 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1977, January to 2006, September. Gray background - average solar cycle.
