Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2617 | N17 | W44 | 03 | 0010 | beta | Dec 9, 2016 | Dec 16, 2016 | Dec 29, 2016 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1987, January to 2016, December. Gray background - average solar cycle.
