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 | N06 | E61 | 01 | 0020 | Alpha | Dec 10, 2004 | Dec 16, 2004 | Dec 30, 2004 |
| № 708 | N08 | W12 | 05 | 0160 | Beta | Dec 4, 2004 | Dec 11, 2004 | Dec 24, 2004 |
| № 707 | S14 | W49 | 09 | 0190 | Beta | Dec 1, 2004 | Dec 8, 2004 | Dec 22, 2004 |
| № 706 | S06 | W48 | 03 | 0080 | Beta | 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.
