Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 1, 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 | S18 | E39 | 01 | 0040 | Alpha | Sep 5, 2003 | Sep 12, 2003 | Sep 26, 2003 |
| № 449 | S16 | E27 | 03 | 0120 | Beta | Sep 4, 2003 | Sep 11, 2003 | Sep 25, 2003 |
| № 448 | N20 | W07 | 10 | 0070 | Beta | Sep 1, 2003 | Sep 8, 2003 | Sep 22, 2003 |
| № 447 | N14 | W50 | 01 | 0010 | Alpha | Aug 29, 2003 | Sep 5, 2003 | Sep 19, 2003 |
| № 445 | N04 | W47 | 04 | 0030 | Beta | Aug 29, 2003 | Sep 5, 2003 | Sep 19, 2003 |
| № 444 | N08 | W47 | 10 | 0050 | Beta | Aug 29, 2003 | Sep 5, 2003 | Sep 19, 2003 |
| № 442 | S13 | W47 | 02 | 0070 | 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.
