Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 537 | N04 | E76 | 06 | 0060 | Alpha | Jan 14, 2004 | Jan 20, 2004 | Feb 3, 2004 |
| № 536 | S10 | E12 | 34 | 0980 | Beta-Gamma-Delta | Jan 9, 2004 | Jan 16, 2004 | Jan 29, 2004 |
| № 534 | S07 | W40 | 08 | 0020 | Beta | Jan 5, 2004 | Jan 12, 2004 | Jan 25, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, January. Gray background - average solar cycle.
