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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 581 | S03 | E81 | 01 | 0060 | Alpha | Apr 1, 2004 | Apr 8, 2004 | Apr 21, 2004 |
| № 580 | S07 | W07 | 03 | 0010 | Alpha | Mar 25, 2004 | Apr 1, 2004 | Apr 15, 2004 |
| № 578 | N15 | W07 | 27 | 0190 | Beta | Mar 25, 2004 | Apr 1, 2004 | Apr 15, 2004 |
| № 577 | S01 | W14 | 04 | 0060 | Beta | Mar 25, 2004 | Apr 1, 2004 | Apr 14, 2004 |
| № 574 | S04 | W40 | 24 | 0130 | Beta | Mar 23, 2004 | Mar 30, 2004 | Apr 12, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to March 2004. The gray background is the average SSN index.
