Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 15, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 459 | S11 | E40 | 03 | 0010 | Beta | Sep 19, 2003 | Sep 26, 2003 | Oct 9, 2003 |
| № 458 | S09 | W44 | 06 | 0030 | Beta | Sep 13, 2003 | Sep 19, 2003 | Oct 3, 2003 |
| № 456 | S08 | W71 | 19 | 0170 | Beta | Sep 11, 2003 | Sep 17, 2003 | Oct 1, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to September 2003. The gray background is the average SSN index.
