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) | |
|---|---|---|---|---|---|---|---|---|
| № 1176 | S14 | E69 | 03 | 0340 | Beta | Mar 29, 2011 | Apr 5, 2011 | Apr 19, 2011 |
| № 1175 | N11 | W65 | 08 | 0130 | Beta | Mar 19, 2011 | Mar 26, 2011 | Apr 8, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, March. Gray background - average solar cycle.

