Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 27, 2019. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2753 | S29 | E17 | 01 | 0010 | Alpha | Dec 29, 2019 | Jan 5, 2020 | Jan 20, 2020 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1990 to December 2019. The gray background is the average SSN index.
