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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 16, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2401 | S11 | E24 | 08 | 0030 | Beta | Aug 19, 2015 | Aug 25, 2015 | Sep 8, 2015 |
| № 2400 | N18 | W16 | 05 | 0030 | Beta | Aug 16, 2015 | Aug 22, 2015 | Sep 5, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to August 2015. The gray background is the average SSN index.
