Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 14, 2004. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 558 | S15 | E38 | 02 | 0020 | Beta | Feb 18, 2004 | Feb 25, 2004 | Mar 9, 2004 |
| № 557 | S11 | W30 | 06 | 0030 | Beta | Feb 13, 2004 | Feb 19, 2004 | Mar 4, 2004 |
| № 556 | N16 | W02 | 07 | 0020 | Beta | Feb 15, 2004 | Feb 22, 2004 | Mar 6, 2004 |
| № 554 | S08 | E01 | 04 | 0150 | Beta | Feb 15, 2004 | Feb 22, 2004 | Mar 6, 2004 |
| № 551 | S07 | W77 | 02 | 0050 | Alpha | Feb 9, 2004 | Feb 16, 2004 | Feb 29, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to February 2004. The gray background is the average SSN index.
