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) | |
|---|---|---|---|---|---|---|---|---|
| № 1668 | N12 | W16 | 07 | 0030 | Beta | Feb 4, 2013 | Feb 11, 2013 | Feb 24, 2013 |
| № 1667 | N22 | E42 | 14 | 0160 | Beta | Feb 8, 2013 | Feb 15, 2013 | Mar 1, 2013 |
| № 1665 | N10 | W04 | 05 | 0190 | Beta | Feb 5, 2013 | Feb 11, 2013 | Feb 25, 2013 |
| № 1663 | S09 | W65 | 01 | 0000 | Alpha | Jan 31, 2013 | Feb 7, 2013 | Feb 20, 2013 |
| № 1662 | N27 | W79 | 02 | 0020 | Alpha | Jan 30, 2013 | Feb 6, 2013 | Feb 20, 2013 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1984, January to 2013, February. Gray background - average solar cycle.
