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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1315 | N20 | E08 | 06 | 0040 | Beta | Oct 13, 2011 | Oct 20, 2011 | Nov 2, 2011 |
| № 1314 | N27 | E59 | 02 | 0230 | Alpha | Oct 17, 2011 | Oct 24, 2011 | Nov 7, 2011 |
| № 1313 | S15 | E01 | 15 | 0090 | Beta | Oct 12, 2011 | Oct 19, 2011 | Nov 2, 2011 |
| № 1312 | N22 | W03 | 01 | 0210 | Alpha | Oct 12, 2011 | Oct 19, 2011 | Nov 2, 2011 |
| № 1311 | S12 | W63 | 01 | 0040 | Alpha | Oct 7, 2011 | Oct 14, 2011 | Oct 28, 2011 |
| № 1309 | N23 | W38 | 02 | 0040 | Alpha | Oct 9, 2011 | Oct 16, 2011 | Oct 30, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to October 2011. The gray background is the average SSN index.
