Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 4, 2003. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 276 | S14 | E56 | 25 | 0280 | Beta | Feb 9, 2003 | Feb 16, 2003 | Mar 2, 2003 |
| № 274 | S05 | W07 | 13 | 0130 | Beta | Feb 4, 2003 | Feb 11, 2003 | Feb 25, 2003 |
| № 272 | S04 | W85 | 01 | 0040 | Alpha | Jan 29, 2003 | Feb 5, 2003 | Feb 19, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to February 2003. The gray background is the average SSN index.
