Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 20, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 316 | S12 | E52 | 03 | 0020 | Beta | Mar 25, 2003 | Apr 1, 2003 | Apr 14, 2003 |
| № 314 | S13 | W66 | 17 | 0370 | Beta-Gamma-Delta | Mar 16, 2003 | Mar 23, 2003 | Apr 5, 2003 |
| № 306 | N08 | W88 | 03 | 0260 | Beta | Mar 14, 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.
