Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 8, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 455 | S20 | E22 | 02 | 0020 | Beta | Sep 11, 2003 | Sep 18, 2003 | Oct 2, 2003 |
| № 454 | S10 | W20 | 05 | 0020 | Beta | Sep 8, 2003 | Sep 14, 2003 | Sep 28, 2003 |
| № 453 | S24 | W80 | 03 | 0140 | Beta | Sep 3, 2003 | Sep 10, 2003 | Sep 24, 2003 |
| № 450 | S17 | W65 | 04 | 0030 | Beta | Sep 4, 2003 | Sep 11, 2003 | Sep 25, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to September 2003. The gray background is the average SSN index.
