Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 349 | S13 | E18 | 44 | 0510 | Beta-Gamma | May 3, 2003 | May 9, 2003 | May 23, 2003 |
| № 348 | S35 | E17 | 10 | 0050 | Beta | May 3, 2003 | May 10, 2003 | May 24, 2003 |
| № 347 | S18 | W04 | 09 | 0010 | Beta | May 1, 2003 | May 8, 2003 | May 21, 2003 |
| № 346 | N16 | E10 | 04 | 0090 | Beta | May 2, 2003 | May 9, 2003 | May 22, 2003 |
| № 345 | S16 | E06 | 15 | 0190 | Beta | May 2, 2003 | May 8, 2003 | May 22, 2003 |
| № 344 | N16 | W29 | 18 | 0370 | Beta-Gamma | Apr 29, 2003 | May 6, 2003 | May 19, 2003 |
| № 343 | N07 | W25 | 02 | 0000 | Alpha | Apr 29, 2003 | May 6, 2003 | May 20, 2003 |
| № 340 | S09 | W52 | 17 | 0130 | Beta | Apr 27, 2003 | May 4, 2003 | May 18, 2003 |
| № 337 | S16 | W69 | 15 | 0290 | Beta-Gamma | Apr 26, 2003 | May 3, 2003 | May 16, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to April 2003. The gray background is the average SSN index.
