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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 2, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 328 | S13 | E04 | 04 | 0010 | Beta | Apr 3, 2003 | Apr 10, 2003 | Apr 24, 2003 |
| № 327 | S06 | W23 | 03 | 0030 | Beta | Apr 1, 2003 | Apr 8, 2003 | Apr 21, 2003 |
| № 326 | S13 | E23 | 01 | 0030 | Alpha | Apr 5, 2003 | Apr 11, 2003 | Apr 25, 2003 |
| № 325 | N12 | E16 | 08 | 0310 | Beta | Apr 4, 2003 | Apr 11, 2003 | Apr 24, 2003 |
| № 324 | S11 | W06 | 11 | 0060 | Beta | Apr 2, 2003 | Apr 9, 2003 | Apr 23, 2003 |
| № 323 | S08 | W41 | 22 | 0350 | Beta-Gamma | Mar 31, 2003 | Apr 7, 2003 | Apr 20, 2003 |
| № 321 | N06 | W27 | 16 | 0100 | Beta | Apr 1, 2003 | Apr 8, 2003 | Apr 21, 2003 |
| № 319 | N12 | W72 | 02 | 0130 | Alpha | Mar 28, 2003 | Apr 4, 2003 | Apr 18, 2003 |
| № 318 | S12 | W63 | 04 | 0030 | Beta | Mar 29, 2003 | Apr 5, 2003 | Apr 18, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to April 2003. The gray background is the average SSN index.
