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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 24, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2439 | N17 | E65 | 01 | 0030 | Alpha | Oct 30, 2015 | Nov 6, 2015 | Nov 19, 2015 |
| № 2438 | S18 | W36 | 01 | 0010 | Alpha | Oct 22, 2015 | Oct 29, 2015 | Nov 12, 2015 |
| № 2437 | S19 | E07 | 01 | 0020 | Alpha | Oct 25, 2015 | Nov 1, 2015 | Nov 15, 2015 |
| № 2436 | N09 | W04 | 21 | 0250 | Beta | Oct 25, 2015 | Oct 31, 2015 | Nov 14, 2015 |
| № 2435 | S15 | W19 | 01 | 0010 | Alpha | Oct 23, 2015 | Oct 30, 2015 | Nov 13, 2015 |
| № 2434 | S09 | W59 | 06 | 0090 | Beta | Oct 20, 2015 | Oct 27, 2015 | Nov 10, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to October 2015. The gray background is the average SSN index.
