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) | |
|---|---|---|---|---|---|---|---|---|
| № 1175 | N13 | W09 | 06 | 0020 | Beta | Mar 19, 2011 | Mar 26, 2011 | Apr 9, 2011 |
| № 1173 | S29 | E14 | 09 | 0030 | Beta | Mar 21, 2011 | Mar 28, 2011 | Apr 11, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, March. Gray background - average solar cycle.
