Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 830 | N14 | E64 | 02 | 0070 | Beta | Dec 10, 2005 | Dec 17, 2005 | Dec 30, 2005 |
| № 829 | N11 | W12 | 04 | 0030 | Beta | Dec 4, 2005 | Dec 11, 2005 | Dec 24, 2005 |
| № 828 | S04 | E16 | 08 | 0070 | Beta | Dec 6, 2005 | Dec 13, 2005 | Dec 27, 2005 |
| № 826 | S03 | W10 | 21 | 0380 | Beta-Gamma | Dec 4, 2005 | Dec 11, 2005 | Dec 25, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to December 2005. The gray background is the average SSN index.
