Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 7, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 732 | N09 | E72 | 03 | 0040 | Beta | Feb 13, 2005 | Feb 20, 2005 | Mar 6, 2005 |
| № 731 | S02 | E29 | 02 | 0030 | Beta | Feb 10, 2005 | Feb 17, 2005 | Mar 2, 2005 |
| № 730 | S20 | E48 | 01 | 0050 | Alpha | Feb 12, 2005 | Feb 18, 2005 | Mar 4, 2005 |
| № 729 | S11 | W64 | 01 | 0020 | Alpha | Feb 3, 2005 | Feb 10, 2005 | Feb 23, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to February 2005. The gray background is the average SSN index.
