Sunspots and active regions — September 15, 2006
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) | |
|---|---|---|---|---|---|---|---|---|
| № 909 | S08 | W93 | 01 | 0030 | Alpha | Sep 9, 2006 | Sep 16, 2006 | Sep 29, 2006 |
| № 908 | S13 | W45 | 04 | 0190 | Alpha | Sep 12, 2006 | Sep 19, 2006 | Oct 3, 2006 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1977, January to 2006, September. Gray background - average solar cycle.
