Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 24, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 738 | S10 | E10 | 02 | 0010 | Beta | Feb 26, 2005 | Mar 5, 2005 | Mar 18, 2005 |
| № 737 | S07 | W31 | 08 | 0040 | Beta | Feb 23, 2005 | Mar 1, 2005 | Mar 15, 2005 |
| № 736 | N13 | W92 | 03 | 0090 | Beta | Feb 18, 2005 | Feb 25, 2005 | Mar 10, 2005 |
| № 735 | S09 | W97 | 01 | 0060 | Alpha | Feb 18, 2005 | Feb 24, 2005 | Mar 10, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to February 2005. The gray background is the average SSN index.
