Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2281 | N13 | E77 | 01 | 0060 | Beta | Feb 11, 2015 | Feb 17, 2015 | Mar 3, 2015 |
| № 2280 | S06 | E44 | 10 | 0080 | Beta | Feb 8, 2015 | Feb 15, 2015 | Feb 28, 2015 |
| № 2279 | S21 | W69 | 03 | 0030 | Beta | Jan 31, 2015 | Feb 6, 2015 | Feb 20, 2015 |
| № 2277 | N09 | W04 | 36 | 0440 | Beta-Gamma | Feb 5, 2015 | Feb 11, 2015 | Feb 25, 2015 |
| № 2268 | S11 | W83 | 12 | 0220 | Beta-Gamma | Jan 30, 2015 | Feb 5, 2015 | Feb 19, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to February 2015. The gray background is the average SSN index.
