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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2434 | S10 | E49 | 12 | 0050 | Beta-Gamma | Oct 21, 2015 | Oct 27, 2015 | Nov 10, 2015 |
| № 2432 | S21 | W10 | 06 | 0020 | Beta | Oct 16, 2015 | Oct 23, 2015 | Nov 6, 2015 |
| № 2431 | S17 | E08 | 01 | 0030 | Alpha | Oct 18, 2015 | Oct 24, 2015 | Nov 7, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to October 2015. The gray background is the average SSN index.
