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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 19, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2419 | N12 | E10 | 08 | 0070 | Beta | Sep 21, 2015 | Sep 27, 2015 | Oct 11, 2015 |
| № 2418 | S14 | E07 | 05 | 0230 | Beta | Sep 20, 2015 | Sep 27, 2015 | Oct 11, 2015 |
| № 2415 | S19 | W27 | 19 | 0190 | Beta-Gamma | Sep 18, 2015 | Sep 25, 2015 | Oct 8, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to September 2015. The gray background is the average SSN index.
