Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 31, 2005. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 844 | S14 | W70 | 04 | 0070 | Beta | Dec 27, 2005 | Jan 3, 2006 | Jan 16, 2006 |
| № 843 | N12 | E15 | 04 | 0030 | Beta | Jan 2, 2006 | Jan 9, 2006 | Jan 23, 2006 |
| № 841 | N12 | W07 | 05 | 0110 | Beta | Dec 31, 2005 | Jan 7, 2006 | Jan 21, 2006 |
| № 840 | S02 | W13 | 02 | 0020 | Alpha | Dec 31, 2005 | Jan 7, 2006 | Jan 20, 2006 |
| № 838 | N15 | W73 | 02 | 0030 | Alpha | Dec 26, 2005 | Jan 2, 2006 | Jan 16, 2006 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to December 2005. The gray background is the average SSN index.
