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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2420 | N10 | E66 | 16 | 0290 | Beta-Gamma | Sep 28, 2015 | Oct 5, 2015 | Oct 18, 2015 |
| № 2419 | N13 | W30 | 04 | 0020 | Beta | Sep 21, 2015 | Sep 27, 2015 | Oct 11, 2015 |
| № 2418 | S15 | W33 | 04 | 0180 | Beta | Sep 20, 2015 | Sep 27, 2015 | Oct 11, 2015 |
| № 2415 | S18 | W67 | 04 | 0160 | 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.
