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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1364 | N18 | E48 | 01 | 0040 | Alpha | Dec 7, 2011 | Dec 14, 2011 | Dec 27, 2011 |
| № 1363 | S20 | E42 | 05 | 0120 | Beta | Dec 6, 2011 | Dec 13, 2011 | Dec 27, 2011 |
| № 1362 | N08 | E22 | 10 | 0180 | Beta | Dec 5, 2011 | Dec 11, 2011 | Dec 25, 2011 |
| № 1361 | N19 | W18 | 07 | 0060 | Beta | Dec 2, 2011 | Dec 9, 2011 | Dec 22, 2011 |
| № 1358 | N21 | W38 | 03 | 0090 | Beta | Nov 30, 2011 | Dec 7, 2011 | Dec 21, 2011 |
| № 1356 | N17 | W76 | 03 | 0050 | Beta | Nov 27, 2011 | Dec 4, 2011 | Dec 18, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to December 2011. The gray background is the average SSN index.
