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) | |
|---|---|---|---|---|---|---|---|---|
| № 522 | N16 | W50 | 05 | 0020 | Beta | Dec 11, 2003 | Dec 18, 2003 | Jan 1, 2004 |
| № 521 | S12 | E34 | 04 | 0080 | Beta | Dec 18, 2003 | Dec 24, 2003 | Jan 7, 2004 |
| № 520 | N02 | E33 | 01 | 0110 | Alpha | Dec 17, 2003 | Dec 24, 2003 | Jan 7, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1974, January to 2003, December. Gray background - average solar cycle.
