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) | |
|---|---|---|---|---|---|---|---|---|
| № 1164 | N28 | E76 | 01 | 0250 | Alpha | Mar 5, 2011 | Mar 12, 2011 | Mar 26, 2011 |
| № 1163 | N17 | E60 | 10 | 0120 | Beta-Gamma | Mar 4, 2011 | Mar 10, 2011 | Mar 24, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, February. Gray background - average solar cycle.
