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) | |
|---|---|---|---|---|---|---|---|---|
| № 1307 | N16 | E66 | 04 | 0010 | Beta | Oct 6, 2011 | Oct 13, 2011 | Oct 26, 2011 |
| № 1306 | N14 | E35 | 01 | 0030 | Alpha | Oct 4, 2011 | Oct 10, 2011 | Oct 24, 2011 |
| № 1305 | N13 | E17 | 08 | 0100 | Beta-Gamma | Oct 2, 2011 | Oct 9, 2011 | Oct 23, 2011 |
| № 1304 | N13 | W43 | 02 | 0010 | Beta | Sep 28, 2011 | Oct 4, 2011 | Oct 18, 2011 |
| № 1302 | N13 | W15 | 23 | 0750 | Beta-Gamma-Delta | Sep 30, 2011 | Oct 7, 2011 | Oct 20, 2011 |
| № 1301 | N16 | W63 | 01 | 0020 | Alpha | Sep 26, 2011 | Oct 3, 2011 | Oct 17, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, September. Gray background - average solar cycle.
