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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 421 | S08 | E77 | 01 | 0030 | Alpha | Aug 4, 2003 | Aug 11, 2003 | Aug 24, 2003 |
| № 420 | N11 | E38 | 01 | 0070 | Alpha | Aug 1, 2003 | Aug 8, 2003 | Aug 21, 2003 |
| № 419 | N11 | E09 | 02 | 0010 | Beta | Jul 30, 2003 | Aug 5, 2003 | Aug 19, 2003 |
| № 414 | S04 | W62 | 01 | 0110 | Alpha | Jul 24, 2003 | Jul 31, 2003 | Aug 14, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to July 2003. The gray background is the average SSN index.
