Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 27, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 739 | S04 | E52 | 04 | 0030 | Beta | Mar 4, 2005 | Mar 11, 2005 | Mar 24, 2005 |
| № 737 | S11 | W72 | 03 | 0040 | Beta | Feb 23, 2005 | Mar 1, 2005 | Mar 15, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to February 2005. The gray background is the average SSN index.
