Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1639 | S16 | E64 | 04 | 0050 | Beta | Jan 3, 2013 | Jan 10, 2013 | Jan 24, 2013 |
| № 1638 | N12 | E64 | 01 | 0080 | Alpha | Jan 3, 2013 | Jan 10, 2013 | Jan 23, 2013 |
| № 1637 | N06 | E31 | 01 | 0010 | Alpha | Jan 1, 2013 | Jan 7, 2013 | Jan 21, 2013 |
| № 1636 | N09 | E27 | 01 | 0010 | Alpha | Dec 31, 2012 | Jan 7, 2013 | Jan 21, 2013 |
| № 1635 | N13 | W48 | 21 | 0120 | Beta | Dec 26, 2012 | Jan 1, 2013 | Jan 15, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to December 2012. The gray background is the average SSN index.
