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) | |
|---|---|---|---|---|---|---|---|---|
| № 728 | S14 | E24 | 01 | 0010 | Alpha | Feb 1, 2005 | Feb 8, 2005 | Feb 21, 2005 |
| № 727 | S05 | W16 | 10 | 0070 | Beta | Jan 29, 2005 | Feb 5, 2005 | Feb 18, 2005 |
| № 723 | N05 | W70 | 02 | 0070 | Alpha | Jan 25, 2005 | Feb 1, 2005 | Feb 14, 2005 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1976, January to 2005, January. Gray background - average solar cycle.
