Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 577 | S01 | E77 | 01 | 0060 | Alpha | Mar 25, 2004 | Apr 1, 2004 | Apr 14, 2004 |
| № 576 | S18 | W38 | 03 | 0020 | Beta | Mar 16, 2004 | Mar 23, 2004 | Apr 6, 2004 |
| № 575 | S18 | W02 | 03 | 0010 | Beta | Mar 19, 2004 | Mar 26, 2004 | Apr 8, 2004 |
| № 574 | S02 | E56 | 18 | 0110 | Beta-Gamma | Mar 23, 2004 | Mar 30, 2004 | Apr 12, 2004 |
| № 573 | S12 | E06 | 02 | 0010 | Beta | Mar 19, 2004 | Mar 26, 2004 | Apr 9, 2004 |
| № 572 | N19 | W72 | 01 | 0040 | Alpha | Mar 14, 2004 | Mar 20, 2004 | Apr 3, 2004 |
| № 570 | S14 | W80 | 03 | 0200 | Beta-Gamma | Mar 13, 2004 | Mar 20, 2004 | Apr 2, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, March. Gray background - average solar cycle.
