Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 2, 2003. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 450 | S17 | E29 | 01 | 0020 | Alpha | Sep 5, 2003 | Sep 12, 2003 | Sep 26, 2003 |
| № 449 | S16 | E15 | 04 | 0080 | Beta | Sep 4, 2003 | Sep 11, 2003 | Sep 25, 2003 |
| № 448 | N20 | W18 | 10 | 0040 | Beta | Sep 1, 2003 | Sep 8, 2003 | Sep 22, 2003 |
| № 442 | S13 | W59 | 04 | 0080 | Beta | Aug 29, 2003 | Sep 5, 2003 | Sep 19, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to September 2003. The gray background is the average SSN index.
