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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 31, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 528 | N10 | W79 | 05 | 0100 | Beta | Dec 26, 2003 | Jan 2, 2004 | Jan 15, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to December 2003. The gray background is the average SSN index.
