Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 16, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 460 | N16 | E71 | 01 | 0040 | Alpha | Sep 23, 2003 | Sep 30, 2003 | Oct 13, 2003 |
| № 459 | S11 | E20 | 04 | 0020 | Beta | Sep 19, 2003 | Sep 26, 2003 | Oct 9, 2003 |
| № 458 | S08 | W64 | 02 | 0010 | Alpha | Sep 12, 2003 | Sep 19, 2003 | Oct 3, 2003 |
| № 457 | S12 | W73 | 01 | 0020 | Alpha | Sep 12, 2003 | Sep 19, 2003 | Oct 2, 2003 |
| № 456 | S08 | W92 | 10 | 0110 | Beta | Sep 10, 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.
