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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 8, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2413 | N02 | W46 | 01 | 0010 | Alpha | Sep 5, 2015 | Sep 12, 2015 | Sep 26, 2015 |
| № 2412 | S07 | E45 | 04 | 0040 | Beta | Sep 12, 2015 | Sep 19, 2015 | Oct 3, 2015 |
| № 2411 | N14 | E25 | 01 | 0030 | Alpha | Sep 11, 2015 | Sep 18, 2015 | Oct 1, 2015 |
| № 2409 | N05 | W24 | 01 | 0000 | Alpha | Sep 7, 2015 | Sep 14, 2015 | Sep 27, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to September 2015. The gray background is the average SSN index.
