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) | |
|---|---|---|---|---|---|---|---|---|
| № 835 | N19 | E78 | 01 | 0050 | Alpha | Dec 17, 2005 | Dec 24, 2005 | Jan 7, 2006 |
| № 834 | S07 | E77 | 01 | 0060 | Alpha | Dec 17, 2005 | Dec 24, 2005 | Jan 6, 2006 |
| № 833 | S17 | W52 | 03 | 0030 | Beta | Dec 7, 2005 | Dec 14, 2005 | Dec 28, 2005 |
| № 832 | S15 | W72 | 04 | 0090 | Beta | Dec 6, 2005 | Dec 12, 2005 | Dec 26, 2005 |
| № 830 | N11 | W15 | 02 | 0050 | Alpha | Dec 10, 2005 | Dec 17, 2005 | Dec 30, 2005 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1976, January to 2005, December. Gray background - average solar cycle.

