Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1662 | N28 | E41 | 01 | 0050 | Alpha | Jan 30, 2013 | Feb 6, 2013 | Feb 20, 2013 |
| № 1661 | N15 | E20 | 03 | 0030 | Beta | Jan 29, 2013 | Feb 4, 2013 | Feb 18, 2013 |
| № 1660 | N13 | W68 | 10 | 0220 | Beta | Jan 22, 2013 | Jan 29, 2013 | Feb 11, 2013 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1984, January to 2013, January. Gray background - average solar cycle.
