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) | |
|---|---|---|---|---|---|---|---|---|
| № 620 | S15 | W03 | 04 | 0010 | Beta | May 28, 2004 | Jun 4, 2004 | Jun 17, 2004 |
| № 619 | S09 | W76 | 01 | 0010 | Alpha | May 22, 2004 | May 29, 2004 | Jun 12, 2004 |
| № 618 | S10 | W13 | 31 | 0330 | Beta-Gamma-Delta | May 27, 2004 | Jun 3, 2004 | Jun 16, 2004 |
| № 615 | N17 | W66 | 01 | 0060 | Alpha | May 23, 2004 | May 30, 2004 | Jun 13, 2004 |
| № 613 | S09 | W94 | 02 | 0060 | Alpha | May 21, 2004 | May 28, 2004 | Jun 10, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, May. Gray background - average solar cycle.
