Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 1, 2011. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1165 | S21 | E16 | 04 | 0020 | Beta | Mar 3, 2011 | Mar 10, 2011 | Mar 24, 2011 |
| № 1164 | N26 | E35 | 19 | 0350 | Beta-Gamma | Mar 5, 2011 | Mar 12, 2011 | Mar 26, 2011 |
| № 1163 | N18 | E21 | 01 | 0010 | Alpha | Mar 3, 2011 | Mar 10, 2011 | Mar 24, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to March 2011. The gray background is the average SSN index.
