Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 27, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2426 | N16 | E34 | 02 | 0010 | Beta | Oct 1, 2015 | Oct 7, 2015 | Oct 21, 2015 |
| № 2425 | S05 | W15 | 03 | 0010 | Beta | Sep 27, 2015 | Oct 4, 2015 | Oct 17, 2015 |
| № 2424 | N12 | W44 | 03 | 0020 | Beta | Sep 25, 2015 | Oct 1, 2015 | Oct 15, 2015 |
| № 2423 | S09 | W51 | 05 | 0020 | Beta | Sep 24, 2015 | Oct 1, 2015 | Oct 15, 2015 |
| № 2422 | S20 | W03 | 28 | 0410 | Beta-Gamma-Delta | Sep 28, 2015 | Oct 5, 2015 | Oct 18, 2015 |
| № 2421 | N17 | W21 | 12 | 0110 | Beta | Sep 26, 2015 | Oct 3, 2015 | Oct 17, 2015 |
| № 2420 | N10 | W04 | 15 | 0140 | Beta-Gamma | Sep 28, 2015 | Oct 4, 2015 | Oct 18, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to September 2015. The gray background is the average SSN index.
