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) | |
|---|---|---|---|---|---|---|---|---|
| № 1162 | N17 | W73 | 03 | 0070 | Beta | Feb 19, 2011 | Feb 26, 2011 | Mar 12, 2011 |
| № 1161 | N11 | W69 | 04 | 0130 | Beta | Feb 20, 2011 | Feb 27, 2011 | Mar 12, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, February. Gray background - average solar cycle.
