Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 9, 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 | N20 | E06 | 02 | 0000 | Alpha | Aug 10, 2011 | Aug 17, 2011 | Aug 31, 2011 |
| № 1267 | S17 | W12 | 05 | 0010 | Beta | Aug 9, 2011 | Aug 16, 2011 | Aug 29, 2011 |
| № 1266 | N18 | W10 | 20 | 0050 | Beta | Aug 9, 2011 | Aug 16, 2011 | Aug 30, 2011 |
| № 1263 | N18 | W66 | 13 | 0450 | Beta-Gamma-Delta | 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.
