No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2470 | N15 | E18 | 17 | 0610 | Beta | Dec 20, 2015 | Dec 27, 2015 | Jan 10, 2016 |
| № 2469 | N18 | W01 | 02 | 0020 | Alpha | Dec 19, 2015 | Dec 26, 2015 | Jan 9, 2016 |
| № 2468 | S17 | W27 | 03 | 0020 | Beta | Dec 17, 2015 | Dec 24, 2015 | Jan 6, 2016 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to December 2015. The gray background is the average SSN index.
