Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 17, 2003. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 525 | N10 | E70 | 02 | 0030 | Beta | Dec 23, 2003 | Dec 30, 2003 | Jan 13, 2004 |
| № 524 | S08 | E69 | 02 | 0030 | Alpha | Dec 23, 2003 | Dec 30, 2003 | Jan 12, 2004 |
| № 523 | S15 | E74 | 02 | 0060 | Alpha | Dec 23, 2003 | Dec 30, 2003 | Jan 13, 2004 |
| № 521 | S11 | W03 | 06 | 0050 | Beta-Gamma | Dec 18, 2003 | Dec 24, 2003 | Jan 7, 2004 |
| № 520 | N01 | W05 | 09 | 0170 | Beta-Gamma | Dec 17, 2003 | Dec 24, 2003 | Jan 7, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to December 2003. The gray background is the average SSN index.
