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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1333 | N16 | E13 | 10 | 0090 | Beta | Oct 30, 2011 | Nov 6, 2011 | Nov 19, 2011 |
| № 1332 | N31 | E36 | 01 | 0030 | Alpha | Nov 1, 2011 | Nov 8, 2011 | Nov 22, 2011 |
| № 1330 | N08 | E06 | 09 | 0460 | Beta-Gamma | Oct 29, 2011 | Nov 5, 2011 | Nov 19, 2011 |
| № 1327 | S20 | W80 | 01 | 0060 | Alpha | Oct 23, 2011 | Oct 30, 2011 | Nov 12, 2011 |
| № 1325 | N17 | W25 | 01 | 0010 | Alpha | Oct 27, 2011 | Nov 3, 2011 | Nov 17, 2011 |
| № 1324 | N12 | W51 | 03 | 0050 | Beta | Oct 25, 2011 | Nov 1, 2011 | Nov 14, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to October 2011. The gray background is the average SSN index.
