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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 29, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1582 | S12 | E44 | 01 | 0280 | Alpha | Oct 3, 2012 | Oct 10, 2012 | Oct 24, 2012 |
| № 1580 | N19 | E30 | 02 | 0000 | Alpha | Oct 2, 2012 | Oct 9, 2012 | Oct 23, 2012 |
| № 1579 | S09 | E22 | 03 | 0200 | Beta | Oct 2, 2012 | Oct 8, 2012 | Oct 22, 2012 |
| № 1577 | N08 | W39 | 04 | 0010 | Beta | Sep 27, 2012 | Oct 4, 2012 | Oct 17, 2012 |
| № 1576 | S21 | W45 | 01 | 0000 | Alpha | Sep 26, 2012 | Oct 3, 2012 | Oct 17, 2012 |
| № 1575 | N08 | W58 | 06 | 0100 | Alpha | Sep 25, 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.
