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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 26, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 582 | N16 | E69 | 08 | 0170 | Beta | Apr 1, 2004 | Apr 8, 2004 | Apr 22, 2004 |
| № 581 | S03 | E63 | 01 | 0100 | Alpha | Apr 1, 2004 | Apr 8, 2004 | Apr 21, 2004 |
| № 580 | S06 | W24 | 02 | 0010 | Alpha | Mar 25, 2004 | Apr 1, 2004 | Apr 15, 2004 |
| № 579 | S13 | E04 | 01 | 0000 | Alpha | Mar 28, 2004 | Apr 3, 2004 | Apr 17, 2004 |
| № 578 | N15 | W24 | 24 | 0180 | Beta | Mar 25, 2004 | Apr 1, 2004 | Apr 15, 2004 |
| № 577 | N00 | W28 | 05 | 0050 | Beta | Mar 25, 2004 | Apr 1, 2004 | Apr 14, 2004 |
| № 574 | S04 | W55 | 17 | 0140 | Beta-Gamma | 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.
