Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1301 | N20 | E42 | 10 | 0210 | Beta | Sep 26, 2011 | Oct 3, 2011 | Oct 17, 2011 |
| № 1300 | N24 | W85 | 02 | 0030 | Beta | Sep 16, 2011 | Sep 23, 2011 | Oct 7, 2011 |
| № 1299 | S20 | W52 | 04 | 0020 | Beta | Sep 19, 2011 | Sep 26, 2011 | Oct 10, 2011 |
| № 1298 | N16 | W46 | 02 | 0010 | Beta | Sep 19, 2011 | Sep 26, 2011 | Oct 10, 2011 |
| № 1296 | N26 | W28 | 04 | 0020 | Beta | Sep 21, 2011 | Sep 28, 2011 | Oct 12, 2011 |
| № 1295 | N22 | W46 | 26 | 0380 | Beta-Gamma | Sep 19, 2011 | Sep 26, 2011 | Oct 10, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, September. Gray background - average solar cycle.
