Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 7, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 657 | N10 | E82 | 01 | 0080 | Alpha | Aug 14, 2004 | Aug 21, 2004 | Sep 4, 2004 |
| № 656 | S12 | E69 | 01 | 0040 | Alpha | Aug 13, 2004 | Aug 20, 2004 | Sep 3, 2004 |
| № 655 | S09 | W25 | 20 | 0160 | Beta | Aug 6, 2004 | Aug 13, 2004 | Aug 26, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to August 2004. The gray background is the average SSN index.
