Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2263 | N22 | E21 | 04 | 0010 | Beta | Jan 21, 2015 | Jan 28, 2015 | Feb 10, 2015 |
| № 2261 | S11 | W34 | 01 | 0010 | Alpha | Jan 16, 2015 | Jan 23, 2015 | Feb 6, 2015 |
| № 2259 | S16 | W48 | 14 | 0100 | Beta | Jan 15, 2015 | Jan 22, 2015 | Feb 5, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to January 2015. The gray background is the average SSN index.
