Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 31, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 422 | N14 | W71 | 06 | 0130 | Beta | Jul 27, 2003 | Aug 3, 2003 | Aug 16, 2003 |
| № 421 | S08 | E37 | 15 | 0230 | Beta-Gamma | Aug 4, 2003 | Aug 11, 2003 | Aug 24, 2003 |
| № 420 | N11 | W06 | 01 | 0080 | Alpha | Aug 1, 2003 | Aug 8, 2003 | Aug 21, 2003 |
| № 419 | N11 | W33 | 01 | 0010 | Alpha | Jul 30, 2003 | Aug 6, 2003 | Aug 19, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to July 2003. The gray background is the average SSN index.
