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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 9, 2004. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 710 | S08 | E49 | 02 | 0020 | Alpha | Dec 14, 2004 | Dec 20, 2004 | Jan 3, 2005 |
| № 709 | N04 | W09 | 07 | 0020 | Beta | Dec 9, 2004 | Dec 16, 2004 | Dec 29, 2004 |
| № 708 | N09 | W79 | 01 | 0080 | Alpha | Dec 4, 2004 | Dec 11, 2004 | Dec 24, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to December 2004. The gray background is the average SSN index.
