Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 25, 2009. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1038 | N13 | W81 | 01 | 0010 | Alpha | Dec 20, 2009 | Dec 27, 2009 | Jan 9, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1980 to December 2009. The gray background is the average SSN index.
