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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 529 | N09 | W18 | 01 | 0000 | Alpha | Dec 21, 2003 | Dec 27, 2003 | Jan 10, 2004 |
| № 528 | N09 | E49 | 20 | 0360 | Beta | Dec 26, 2003 | Jan 1, 2004 | Jan 15, 2004 |
| № 525 | N09 | E17 | 17 | 0120 | Beta | Dec 23, 2003 | Dec 30, 2003 | Jan 13, 2004 |
| № 524 | S08 | E13 | 02 | 0010 | Beta | Dec 23, 2003 | Dec 30, 2003 | Jan 12, 2004 |
| № 523 | S17 | E23 | 02 | 0020 | Beta | Dec 24, 2003 | Dec 31, 2003 | Jan 13, 2004 |
| № 520 | N03 | W61 | 02 | 0120 | Beta | 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.
