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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 6, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1288 | N18 | E34 | 03 | 0010 | Beta | Sep 10, 2011 | Sep 16, 2011 | Sep 30, 2011 |
| № 1287 | S31 | E38 | 05 | 0080 | Beta | Sep 10, 2011 | Sep 17, 2011 | Oct 1, 2011 |
| № 1283 | N14 | W04 | 29 | 0220 | Beta-Gamma | Sep 7, 2011 | Sep 14, 2011 | Sep 27, 2011 |
| № 1282 | N22 | W86 | 01 | 0070 | Alpha | Aug 31, 2011 | Sep 7, 2011 | Sep 21, 2011 |
| № 1281 | S18 | W39 | 03 | 0050 | Beta | Sep 4, 2011 | Sep 11, 2011 | Sep 25, 2011 |
| № 1277 | N18 | W80 | 01 | 0010 | Alpha | Sep 1, 2011 | Sep 8, 2011 | Sep 21, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to September 2011. The gray background is the average SSN index.
