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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1268 | N18 | W20 | 02 | 0010 | Alpha | Aug 10, 2011 | Aug 17, 2011 | Aug 31, 2011 |
| № 1266 | N19 | W38 | 07 | 0010 | Beta | Aug 9, 2011 | Aug 16, 2011 | Aug 30, 2011 |
| № 1263 | N17 | W92 | 04 | 0230 | Beta-Gamma | Aug 5, 2011 | Aug 12, 2011 | Aug 25, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to August 2011. The gray background is the average SSN index.
