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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 3, 2015. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2409 | N04 | E41 | 06 | 0030 | Beta | Sep 7, 2015 | Sep 14, 2015 | Sep 27, 2015 |
| № 2407 | N17 | W85 | 03 | 0030 | Beta | Aug 28, 2015 | Sep 4, 2015 | Sep 18, 2015 |
| № 2406 | N03 | W16 | 02 | 0010 | Alpha | Sep 3, 2015 | Sep 9, 2015 | Sep 23, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to September 2015. The gray background is the average SSN index.
