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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1157 | N22 | E08 | 07 | 0020 | Beta | Feb 13, 2011 | Feb 20, 2011 | Mar 5, 2011 |
| № 1156 | S14 | E09 | 11 | 0020 | Beta | Feb 13, 2011 | Feb 20, 2011 | Mar 5, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to February 2011. The gray background is the average SSN index.
