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) | |
|---|---|---|---|---|---|---|---|---|
| № 709 | N04 | E20 | 04 | 0010 | Beta | Dec 10, 2004 | Dec 16, 2004 | Dec 30, 2004 |
| № 708 | N10 | W53 | 01 | 0100 | Alpha | Dec 4, 2004 | Dec 11, 2004 | Dec 24, 2004 |
| № 707 | S13 | W88 | 01 | 0060 | Alpha | Dec 1, 2004 | Dec 8, 2004 | Dec 22, 2004 |
| № 706 | S07 | W87 | 01 | 0060 | Alpha | Dec 1, 2004 | Dec 8, 2004 | Dec 22, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, December. Gray background - average solar cycle.
