Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2474 | N08 | W63 | 01 | 0000 | Alpha | Dec 20, 2015 | Dec 27, 2015 | Jan 10, 2016 |
| № 2473 | S23 | E49 | 11 | 0420 | Beta-Gamma | Dec 29, 2015 | Jan 5, 2016 | Jan 19, 2016 |
| № 2472 | N04 | E49 | 10 | 0170 | Beta-Gamma | Dec 29, 2015 | Jan 4, 2016 | Jan 18, 2016 |
| № 2470 | N12 | W66 | 01 | 0320 | Alpha | Dec 20, 2015 | Dec 27, 2015 | Jan 9, 2016 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to December 2015. The gray background is the average SSN index.
