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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 521 | S11 | E63 | 03 | 0110 | Beta | Dec 18, 2003 | Dec 25, 2003 | Jan 7, 2004 |
| № 520 | N02 | E62 | 01 | 0100 | Alpha | Dec 18, 2003 | Dec 24, 2003 | Jan 7, 2004 |
| № 517 | S08 | W78 | 01 | 0060 | Alpha | Dec 7, 2003 | Dec 14, 2003 | Dec 27, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to December 2003. The gray background is the average SSN index.
