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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 325 | N12 | E80 | 01 | 0200 | Alpha | Apr 4, 2003 | Apr 11, 2003 | Apr 24, 2003 |
| № 324 | S16 | E68 | 05 | 0080 | Beta | Apr 3, 2003 | Apr 10, 2003 | Apr 24, 2003 |
| № 323 | S07 | E28 | 08 | 0040 | Beta | Mar 31, 2003 | Apr 7, 2003 | Apr 20, 2003 |
| № 321 | N05 | E34 | 29 | 0320 | Beta-Gamma-Delta | Apr 1, 2003 | Apr 7, 2003 | Apr 21, 2003 |
| № 320 | N05 | W33 | 06 | 0020 | Beta | Mar 27, 2003 | Apr 2, 2003 | Apr 16, 2003 |
| № 319 | N13 | W01 | 30 | 0340 | Beta-Gamma | Mar 29, 2003 | Apr 5, 2003 | Apr 18, 2003 |
| № 318 | S15 | E09 | 07 | 0030 | Beta | Mar 30, 2003 | Apr 6, 2003 | Apr 19, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to March 2003. The gray background is the average SSN index.
