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) | |
|---|---|---|---|---|---|---|---|---|
| № 606 | S09 | E82 | 01 | 0120 | Alpha | May 15, 2004 | May 22, 2004 | Jun 4, 2004 |
| № 605 | S12 | W44 | 01 | 0050 | Alpha | May 6, 2004 | May 12, 2004 | May 26, 2004 |
| № 604 | S18 | W01 | 02 | 0010 | Beta | May 9, 2004 | May 16, 2004 | May 29, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, May. Gray background - average solar cycle.
