Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1263 | N17 | W04 | 16 | 0600 | Beta-Gamma-Delta | Aug 5, 2011 | Aug 11, 2011 | Aug 25, 2011 |
| № 1261 | N16 | W35 | 15 | 0300 | Beta-Gamma | Aug 2, 2011 | Aug 9, 2011 | Aug 23, 2011 |
| № 1260 | N18 | W60 | 05 | 0200 | Beta | Jul 31, 2011 | Aug 7, 2011 | Aug 21, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to August 2011. The gray background is the average SSN index.
