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) | |
|---|---|---|---|---|---|---|---|---|
| № 730 | S20 | E60 | 01 | 0030 | alpha | Feb 11, 2005 | Feb 17, 2005 | Mar 3, 2005 |
| № 729 | S11 | W52 | 01 | 0010 | alpha | Feb 2, 2005 | Feb 9, 2005 | Feb 22, 2005 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1976, January to 2005, February. Gray background - average solar cycle.
