Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 568 | S17 | W32 | 03 | 0010 | Beta | Feb 29, 2004 | Mar 6, 2004 | Mar 20, 2004 |
| № 567 | S13 | E24 | 16 | 0120 | Beta | Mar 4, 2004 | Mar 11, 2004 | Mar 24, 2004 |
| № 565 | S04 | W51 | 06 | 0100 | Beta | Feb 27, 2004 | Mar 5, 2004 | Mar 18, 2004 |
| № 564 | N13 | W67 | 16 | 0650 | Beta-Gamma | Feb 26, 2004 | Mar 4, 2004 | Mar 17, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to March 2004. The gray background is the average SSN index.
