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) | |
|---|---|---|---|---|---|---|---|---|
| № 618 | S11 | E56 | 19 | 0150 | Beta | May 27, 2004 | Jun 3, 2004 | Jun 17, 2004 |
| № 617 | S11 | W45 | 06 | 0030 | Beta | May 20, 2004 | May 26, 2004 | Jun 9, 2004 |
| № 615 | N17 | W00 | 01 | 0100 | Alpha | May 23, 2004 | May 30, 2004 | Jun 12, 2004 |
| № 613 | S09 | W27 | 03 | 0100 | Beta | May 21, 2004 | May 28, 2004 | Jun 10, 2004 |
| № 609 | S02 | W87 | 03 | 0090 | Beta | May 16, 2004 | May 23, 2004 | Jun 6, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, May. Gray background - average solar cycle.
