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) | |
|---|---|---|---|---|---|---|---|---|
| № 1038 | N13 | W81 | 01 | 0010 | Alpha | Dec 20, 2009 | Dec 27, 2009 | Jan 9, 2010 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1980, January to 2009, December. Gray background - average solar cycle.
