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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 2, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1308 | S25 | E57 | 01 | 0030 | Alpha | Oct 7, 2011 | Oct 14, 2011 | Oct 28, 2011 |
| № 1307 | N14 | E39 | 04 | 0030 | Beta | Oct 6, 2011 | Oct 13, 2011 | Oct 26, 2011 |
| № 1306 | N14 | E09 | 01 | 0020 | Alpha | Oct 4, 2011 | Oct 10, 2011 | Oct 24, 2011 |
| № 1305 | N12 | W10 | 14 | 0170 | Beta-Gamma | Oct 2, 2011 | Oct 9, 2011 | Oct 23, 2011 |
| № 1302 | N16 | W39 | 16 | 0700 | Beta-Gamma-Delta | Sep 30, 2011 | Oct 7, 2011 | Oct 20, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to October 2011. The gray background is the average SSN index.
