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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 10, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 333 | N11 | W34 | 02 | 0010 | Alpha | Apr 8, 2003 | Apr 15, 2003 | Apr 29, 2003 |
| № 332 | N11 | E33 | 03 | 0030 | Beta | Apr 13, 2003 | Apr 20, 2003 | May 4, 2003 |
| № 331 | S08 | W60 | 02 | 0010 | Alpha | Apr 6, 2003 | Apr 13, 2003 | Apr 27, 2003 |
| № 330 | N08 | W00 | 14 | 0420 | Beta-Gamma | Apr 11, 2003 | Apr 18, 2003 | May 1, 2003 |
| № 326 | S12 | W76 | 04 | 0090 | Beta | Apr 5, 2003 | Apr 12, 2003 | Apr 26, 2003 |
| № 325 | N15 | W90 | 03 | 0100 | Beta | Apr 4, 2003 | Apr 11, 2003 | Apr 25, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to April 2003. The gray background is the average SSN index.
