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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 16, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 315 | N03 | W74 | 02 | 0020 | Alpha | Mar 11, 2003 | Mar 18, 2003 | Apr 1, 2003 |
| № 314 | S13 | W14 | 27 | 0220 | Beta-Gamma | Mar 16, 2003 | Mar 23, 2003 | Apr 5, 2003 |
| № 313 | N33 | W26 | 04 | 0060 | Beta | Mar 15, 2003 | Mar 22, 2003 | Apr 5, 2003 |
| № 311 | S12 | W36 | 11 | 0060 | Beta | Mar 14, 2003 | Mar 21, 2003 | Apr 4, 2003 |
| № 308 | N10 | W20 | 05 | 0010 | Beta | Mar 15, 2003 | Mar 22, 2003 | Apr 5, 2003 |
| № 306 | N07 | W33 | 15 | 0640 | Beta-Gamma | Mar 15, 2003 | Mar 21, 2003 | Apr 4, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to March 2003. The gray background is the average SSN index.
