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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1583 | N13 | W73 | 05 | 0090 | Beta | Sep 25, 2012 | Oct 2, 2012 | Oct 16, 2012 |
| № 1582 | S11 | E30 | 01 | 0360 | Alpha | Oct 3, 2012 | Oct 10, 2012 | Oct 24, 2012 |
| № 1579 | S08 | E07 | 05 | 0190 | Beta | Oct 1, 2012 | Oct 8, 2012 | Oct 22, 2012 |
| № 1577 | N09 | W52 | 08 | 0090 | Beta | Sep 27, 2012 | Oct 4, 2012 | Oct 17, 2012 |
| № 1575 | N07 | W71 | 01 | 0100 | Alpha | Sep 26, 2012 | Oct 2, 2012 | Oct 16, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to September 2012. The gray background is the average SSN index.
