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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1579 | S09 | E72 | 01 | 0120 | Alpha | Oct 1, 2012 | Oct 8, 2012 | Oct 22, 2012 |
| № 1578 | N21 | E12 | 05 | 0020 | Beta | Sep 27, 2012 | Oct 4, 2012 | Oct 17, 2012 |
| № 1577 | N09 | E19 | 08 | 0080 | Beta | Sep 27, 2012 | Oct 4, 2012 | Oct 18, 2012 |
| № 1576 | S21 | E06 | 02 | 0040 | Beta | Sep 26, 2012 | Oct 3, 2012 | Oct 17, 2012 |
| № 1575 | N09 | W01 | 13 | 0200 | Beta-Gamma | Sep 26, 2012 | Oct 3, 2012 | Oct 16, 2012 |
| № 1573 | N15 | W42 | 01 | 0010 | Alpha | Sep 23, 2012 | Sep 29, 2012 | Oct 13, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to September 2012. The gray background is the average SSN index.
