Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 7, 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 | S16 | E28 | 01 | 0010 | Alpha | Sep 10, 2003 | Sep 17, 2003 | Oct 1, 2003 |
| № 454 | S10 | W08 | 05 | 0050 | Beta | Sep 8, 2003 | Sep 14, 2003 | Sep 28, 2003 |
| № 453 | S23 | W73 | 10 | 0200 | Beta | Sep 3, 2003 | Sep 10, 2003 | Sep 23, 2003 |
| № 450 | S17 | W56 | 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.
