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) | |
|---|---|---|---|---|---|---|---|---|
| № 1571 | S13 | E47 | 03 | 0130 | Beta | Sep 18, 2012 | Sep 25, 2012 | Oct 9, 2012 |
| № 1569 | S12 | E28 | 10 | 0210 | Beta-Gamma | Sep 17, 2012 | Sep 24, 2012 | Oct 7, 2012 |
| № 1566 | N23 | W50 | 01 | 0050 | Alpha | Sep 11, 2012 | Sep 18, 2012 | Oct 2, 2012 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1983, January to 2012, September. Gray background - average solar cycle.
