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) | |
|---|---|---|---|---|---|---|---|---|
| № 579 | S13 | E35 | 02 | 0010 | Beta | Mar 28, 2004 | Apr 3, 2004 | Apr 17, 2004 |
| № 578 | N15 | E05 | 31 | 0190 | Beta-Gamma | Mar 25, 2004 | Apr 1, 2004 | Apr 15, 2004 |
| № 577 | N00 | W01 | 04 | 0050 | Beta | Mar 25, 2004 | Apr 1, 2004 | Apr 14, 2004 |
| № 574 | S04 | W25 | 33 | 0130 | Beta-Gamma | Mar 23, 2004 | Mar 30, 2004 | Apr 12, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, March. Gray background - average solar cycle.
