Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2275 | S17 | W24 | 11 | 0090 | Beta-Gamma | Jan 27, 2015 | Feb 3, 2015 | Feb 17, 2015 |
| № 2273 | S03 | W10 | 06 | 0090 | Beta | Jan 28, 2015 | Feb 4, 2015 | Feb 17, 2015 |
| № 2272 | N13 | E51 | 03 | 0040 | Beta | Feb 2, 2015 | Feb 9, 2015 | Feb 22, 2015 |
| № 2271 | N18 | W16 | 10 | 0120 | Beta-Gamma | Jan 28, 2015 | Feb 3, 2015 | Feb 17, 2015 |
| № 2269 | N07 | W34 | 05 | 0020 | Beta | Jan 26, 2015 | Feb 2, 2015 | Feb 16, 2015 |
| № 2268 | S10 | E11 | 24 | 0480 | Beta-Gamma | Jan 30, 2015 | Feb 5, 2015 | Feb 19, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to January 2015. The gray background is the average SSN index.
