Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 8, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 539 | N09 | E29 | 02 | 0010 | Beta | Jan 11, 2004 | Jan 18, 2004 | Feb 1, 2004 |
| № 538 | N07 | E04 | 03 | 0010 | Beta | Jan 9, 2004 | Jan 16, 2004 | Jan 30, 2004 |
| № 537 | N05 | E64 | 10 | 0190 | Beta | Jan 14, 2004 | Jan 21, 2004 | Feb 3, 2004 |
| № 536 | S12 | W04 | 38 | 0800 | Beta-Gamma-Delta | Jan 9, 2004 | Jan 16, 2004 | Jan 29, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to January 2004. The gray background is the average SSN index.
