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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 26, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1279 | N14 | E75 | 01 | 0120 | Alpha | Sep 2, 2011 | Sep 9, 2011 | Sep 22, 2011 |
| № 1278 | N16 | W40 | 04 | 0010 | Beta | Aug 24, 2011 | Aug 31, 2011 | Sep 13, 2011 |
| № 1277 | N17 | E62 | 01 | 0050 | Alpha | Sep 1, 2011 | Sep 8, 2011 | Sep 21, 2011 |
| № 1275 | N07 | E17 | 03 | 0010 | Beta | Aug 28, 2011 | Sep 4, 2011 | Sep 18, 2011 |
| № 1274 | N17 | E05 | 02 | 0010 | Beta | Aug 27, 2011 | Sep 3, 2011 | Sep 17, 2011 |
| № 1272 | S21 | W49 | 01 | 0000 | Alpha | Aug 23, 2011 | Aug 30, 2011 | Sep 13, 2011 |
| № 1271 | N17 | W56 | 15 | 0140 | Beta-Delta | Aug 23, 2011 | Aug 30, 2011 | Sep 12, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to August 2011. The gray background is the average SSN index.
