Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1167 | N14 | E31 | 02 | 0010 | Beta | Mar 7, 2011 | Mar 14, 2011 | Mar 28, 2011 |
| № 1166 | N09 | E65 | 03 | 0140 | Beta | Mar 10, 2011 | Mar 17, 2011 | Mar 30, 2011 |
| № 1165 | S19 | W26 | 05 | 0010 | Beta | Mar 3, 2011 | Mar 10, 2011 | Mar 24, 2011 |
| № 1164 | N25 | W06 | 21 | 0470 | Beta-Gamma | Mar 5, 2011 | Mar 12, 2011 | Mar 25, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to March 2011. The gray background is the average SSN index.
