Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 312 | N09 | W38 | 01 | 0000 | Alpha | Mar 10, 2003 | Mar 17, 2003 | Mar 30, 2003 |
| № 311 | S16 | E19 | 16 | 0070 | Beta | Mar 14, 2003 | Mar 21, 2003 | Apr 4, 2003 |
| № 308 | N08 | E35 | 02 | 0020 | Alpha | Mar 16, 2003 | Mar 22, 2003 | Apr 5, 2003 |
| № 306 | N05 | E21 | 06 | 0520 | Beta | Mar 15, 2003 | Mar 21, 2003 | Apr 4, 2003 |
| № 305 | S22 | W26 | 05 | 0080 | Beta | Mar 11, 2003 | Mar 18, 2003 | Apr 1, 2003 |
| № 304 | S11 | W69 | 09 | 0050 | Beta | Mar 8, 2003 | Mar 15, 2003 | Mar 28, 2003 |
| № 302 | N20 | W30 | 03 | 0020 | Beta | Mar 11, 2003 | Mar 18, 2003 | Mar 31, 2003 |
| № 300 | N16 | W39 | 09 | 0030 | Beta | Mar 10, 2003 | Mar 17, 2003 | Mar 31, 2003 |
| № 296 | N12 | W71 | 01 | 0290 | Alpha | Mar 8, 2003 | Mar 14, 2003 | Mar 28, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to March 2003. The gray background is the average SSN index.
