Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 334 | S08 | E70 | 06 | 0110 | Beta | Apr 17, 2003 | Apr 24, 2003 | May 8, 2003 |
| № 332 | N11 | E19 | 02 | 0010 | Alpha | Apr 13, 2003 | Apr 20, 2003 | May 4, 2003 |
| № 331 | S08 | W73 | 02 | 0020 | Beta | Apr 6, 2003 | Apr 13, 2003 | Apr 27, 2003 |
| № 330 | N07 | W15 | 16 | 0380 | Beta | Apr 11, 2003 | Apr 18, 2003 | May 1, 2003 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1974, January to 2003, April. Gray background - average solar cycle.
