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) | |
|---|---|---|---|---|---|---|---|---|
| № 1669 | N08 | E38 | 02 | 0010 | Alpha | Feb 11, 2013 | Feb 18, 2013 | Mar 3, 2013 |
| № 1667 | N22 | E01 | 06 | 0100 | Beta | Feb 8, 2013 | Feb 15, 2013 | Mar 1, 2013 |
| № 1665 | N12 | W44 | 01 | 0120 | Alpha | Feb 5, 2013 | Feb 11, 2013 | Feb 25, 2013 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1984, January to 2013, February. Gray background - average solar cycle.
