Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 13, 2012. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1571 | S12 | E57 | 01 | 0110 | Beta | Sep 18, 2012 | Sep 25, 2012 | Oct 9, 2012 |
| № 1570 | S13 | W34 | 03 | 0020 | Beta | Sep 11, 2012 | Sep 18, 2012 | Oct 2, 2012 |
| № 1569 | S12 | E39 | 10 | 0200 | Beta | Sep 17, 2012 | Sep 24, 2012 | Oct 7, 2012 |
| № 1568 | S09 | W68 | 02 | 0010 | Alpha | Sep 9, 2012 | Sep 16, 2012 | Sep 29, 2012 |
| № 1566 | N23 | W39 | 02 | 0040 | Alpha | Sep 11, 2012 | Sep 18, 2012 | Oct 2, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to September 2012. The gray background is the average SSN index.
