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) | |
|---|---|---|---|---|---|---|---|---|
| № 682 | S13 | E66 | 12 | 0170 | Beta | Oct 20, 2004 | Oct 27, 2004 | Nov 9, 2004 |
| № 681 | N11 | W19 | 09 | 0020 | Beta | Oct 13, 2004 | Oct 20, 2004 | Nov 3, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, October. Gray background - average solar cycle.
