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) | |
|---|---|---|---|---|---|---|---|---|
| № 1177 | N21 | E51 | 01 | 0010 | Alpha | Mar 29, 2011 | Apr 5, 2011 | Apr 19, 2011 |
| № 1176 | S15 | E58 | 12 | 0490 | Beta-Gamma | Mar 29, 2011 | Apr 5, 2011 | Apr 19, 2011 |
| № 1175 | N11 | W76 | 03 | 0080 | Beta | Mar 19, 2011 | Mar 26, 2011 | Apr 9, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, March. Gray background - average solar cycle.
