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) | |
|---|---|---|---|---|---|---|---|---|
| № 1676 | S13 | W23 | 03 | 0020 | Beta | Feb 24, 2013 | Mar 3, 2013 | Mar 17, 2013 |
| № 1675 | N12 | W76 | 02 | 0040 | Beta | Feb 20, 2013 | Feb 27, 2013 | Mar 13, 2013 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1984, January to 2013, February. Gray background - average solar cycle.
