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) | |
|---|---|---|---|---|---|---|---|---|
| № 724 | S12 | W07 | 03 | 0010 | Beta | Jan 19, 2005 | Jan 26, 2005 | Feb 9, 2005 |
| № 723 | N07 | E63 | 01 | 0100 | Alpha | Jan 25, 2005 | Feb 1, 2005 | Feb 14, 2005 |
| № 722 | N19 | W25 | 01 | 0000 | Alpha | Jan 18, 2005 | Jan 25, 2005 | Feb 8, 2005 |
| № 720 | N13 | W44 | 44 | 1400 | Beta-Gamma | Jan 17, 2005 | Jan 23, 2005 | Feb 6, 2005 |
| № 718 | S07 | W64 | 10 | 0140 | Beta | Jan 15, 2005 | Jan 22, 2005 | Feb 5, 2005 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1976, January to 2005, January. Gray background - average solar cycle.

