Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 24, 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 | N15 | W69 | 01 | 0020 | Alpha | Dec 20, 2009 | Dec 27, 2009 | Jan 9, 2010 |
| № 1036 | S28 | W70 | 02 | 0050 | Beta | Dec 20, 2009 | Dec 27, 2009 | Jan 10, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1980 to December 2009. The gray background is the average SSN index.
