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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1176 | S13 | E81 | 01 | 0180 | Alpha | Mar 29, 2011 | Apr 5, 2011 | Apr 19, 2011 |
| № 1175 | N12 | W50 | 13 | 0140 | Beta | Mar 19, 2011 | Mar 26, 2011 | Apr 9, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to March 2011. The gray background is the average SSN index.
