Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 1, 2013. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1642 | S24 | E71 | 02 | 0050 | Alpha | Jan 7, 2013 | Jan 14, 2013 | Jan 28, 2013 |
| № 1641 | N05 | E52 | 03 | 0040 | Beta | Jan 6, 2013 | Jan 13, 2013 | Jan 26, 2013 |
| № 1640 | N28 | E06 | 11 | 0080 | Beta | Jan 2, 2013 | Jan 10, 2013 | Jan 24, 2013 |
| № 1639 | S16 | E17 | 02 | 0010 | Beta | Jan 3, 2013 | Jan 10, 2013 | Jan 24, 2013 |
| № 1638 | N13 | E17 | 03 | 0090 | Beta | Jan 3, 2013 | Jan 10, 2013 | Jan 24, 2013 |
| № 1636 | N14 | W13 | 06 | 0030 | Beta | Jan 1, 2013 | Jan 8, 2013 | Jan 21, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to January 2013. The gray background is the average SSN index.
