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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 532 | S11 | W25 | 08 | 0040 | Beta | Dec 27, 2003 | Jan 3, 2004 | Jan 17, 2004 |
| № 528 | N10 | W44 | 19 | 0640 | Beta-Gamma | Dec 26, 2003 | Jan 1, 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.
