Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 31, 2010. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1139 | S26 | E35 | 01 | 0000 | Alpha | Jan 4, 2011 | Jan 11, 2011 | Jan 25, 2011 |
| № 1138 | N12 | W53 | 03 | 0020 | Alpha | Dec 28, 2010 | Jan 4, 2011 | Jan 17, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to December 2010. The gray background is the average SSN index.
