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) | |
|---|---|---|---|---|---|---|---|---|
| № 733 | S08 | E67 | 04 | 0240 | Alpha | Feb 15, 2005 | Feb 22, 2005 | Mar 7, 2005 |
| № 732 | N12 | E37 | 10 | 0050 | Beta-Gamma | Feb 13, 2005 | Feb 20, 2005 | Mar 5, 2005 |
| № 730 | S20 | E20 | 09 | 0070 | Beta | Feb 12, 2005 | Feb 18, 2005 | Mar 4, 2005 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1976, January to 2005, February. Gray background - average solar cycle.
