Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 27, 2012. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1637 | N06 | E47 | 01 | 0010 | Alpha | Jan 1, 2013 | Jan 7, 2013 | Jan 21, 2013 |
| № 1636 | N12 | E45 | 02 | 0010 | Beta | Dec 31, 2012 | Jan 7, 2013 | Jan 21, 2013 |
| № 1635 | N12 | W32 | 37 | 0160 | Beta-Gamma | Dec 26, 2012 | Jan 1, 2013 | Jan 15, 2013 |
| № 1633 | S08 | W86 | 02 | 0030 | Beta | Dec 22, 2012 | Dec 28, 2012 | Jan 11, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to December 2012. The gray background is the average SSN index.
