Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 418 | S05 | W06 | 03 | 0020 | Beta | Jul 21, 2003 | Jul 28, 2003 | Aug 11, 2003 |
| № 417 | S22 | W34 | 21 | 0110 | Beta | Jul 19, 2003 | Jul 26, 2003 | Aug 9, 2003 |
| № 416 | S09 | W40 | 04 | 0030 | Beta | Jul 19, 2003 | Jul 26, 2003 | Aug 8, 2003 |
| № 415 | N13 | E18 | 09 | 0110 | Beta | Jul 23, 2003 | Jul 30, 2003 | Aug 13, 2003 |
| № 414 | S02 | E34 | 01 | 0130 | Alpha | Jul 24, 2003 | Jul 31, 2003 | Aug 14, 2003 |
| № 413 | N19 | W01 | 01 | 0010 | Alpha | Jul 22, 2003 | Jul 29, 2003 | Aug 11, 2003 |
| № 412 | N16 | W32 | 14 | 0200 | Beta-Gamma | Jul 19, 2003 | Jul 26, 2003 | Aug 9, 2003 |
| № 411 | N15 | E03 | 01 | 0030 | Alpha | Jul 22, 2003 | Jul 29, 2003 | Aug 12, 2003 |
| № 410 | S12 | W24 | 44 | 0620 | Beta-Gamma-Delta | Jul 20, 2003 | Jul 27, 2003 | Aug 9, 2003 |
| № 409 | N15 | W20 | 15 | 0160 | Beta | Jul 20, 2003 | Jul 27, 2003 | Aug 10, 2003 |
| № 405 | S11 | W55 | 01 | 0020 | Alpha | Jul 18, 2003 | Jul 24, 2003 | Aug 7, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to July 2003. The gray background is the average SSN index.
