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) | |
|---|---|---|---|---|---|---|---|---|
| № 713 | S10 | E70 | 01 | 0070 | Alpha | Dec 24, 2004 | Dec 31, 2004 | Jan 14, 2005 |
| № 712 | S10 | E50 | 04 | 0020 | Beta | Dec 23, 2004 | Dec 30, 2004 | Jan 12, 2005 |
| № 710 | S07 | W72 | 05 | 0050 | Beta | Dec 14, 2004 | Dec 20, 2004 | Jan 3, 2005 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, December. Gray background - average solar cycle.
