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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 25, 2011. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1304 | N12 | E24 | 02 | 0010 | Beta | Sep 28, 2011 | Oct 4, 2011 | Oct 18, 2011 |
| № 1303 | S28 | W64 | 01 | 0030 | Beta | Sep 21, 2011 | Sep 28, 2011 | Oct 12, 2011 |
| № 1302 | N12 | E49 | 12 | 1300 | Beta-Gamma-Delta | Sep 30, 2011 | Oct 6, 2011 | Oct 20, 2011 |
| № 1301 | N18 | E01 | 16 | 0090 | Beta | Sep 26, 2011 | Oct 3, 2011 | Oct 17, 2011 |
| № 1295 | N26 | W82 | 07 | 0500 | Beta-Gamma | Sep 19, 2011 | Sep 26, 2011 | Oct 10, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to September 2011. The gray background is the average SSN index.
