Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 23, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 318 | S16 | E76 | 04 | 0040 | Beta | Mar 30, 2003 | Apr 5, 2003 | Apr 19, 2003 |
| № 317 | N04 | W23 | 03 | 0020 | Beta | Mar 22, 2003 | Mar 29, 2003 | Apr 11, 2003 |
| № 316 | S11 | E13 | 03 | 0010 | Beta | Mar 25, 2003 | Apr 1, 2003 | Apr 14, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to March 2003. The gray background is the average SSN index.
