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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 11, 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 | W25 | 01 | 0000 | Alpha | Mar 10, 2003 | Mar 17, 2003 | Mar 30, 2003 |
| № 311 | S16 | E32 | 12 | 0070 | Beta | Mar 14, 2003 | Mar 21, 2003 | Apr 4, 2003 |
| № 310 | S16 | W62 | 02 | 0010 | Beta | Mar 7, 2003 | Mar 14, 2003 | Mar 28, 2003 |
| № 309 | N05 | W90 | 01 | 0020 | Alpha | Mar 5, 2003 | Mar 12, 2003 | Mar 26, 2003 |
| № 308 | N08 | E48 | 01 | 0030 | Alpha | Mar 16, 2003 | Mar 22, 2003 | Apr 5, 2003 |
| № 306 | N05 | E34 | 08 | 0510 | Beta | Mar 15, 2003 | Mar 21, 2003 | Apr 4, 2003 |
| № 305 | S22 | W13 | 15 | 0040 | Beta | Mar 11, 2003 | Mar 18, 2003 | Apr 1, 2003 |
| № 304 | S11 | W56 | 13 | 0060 | Beta | Mar 8, 2003 | Mar 15, 2003 | Mar 28, 2003 |
| № 302 | N20 | W17 | 04 | 0020 | Beta | Mar 11, 2003 | Mar 18, 2003 | Mar 31, 2003 |
| № 301 | N22 | W45 | 04 | 0020 | Beta | Mar 9, 2003 | Mar 15, 2003 | Mar 29, 2003 |
| № 300 | N16 | W26 | 06 | 0020 | Beta | Mar 10, 2003 | Mar 17, 2003 | Mar 31, 2003 |
| № 299 | N14 | W48 | 04 | 0030 | Beta | Mar 8, 2003 | Mar 15, 2003 | Mar 29, 2003 |
| № 297 | S13 | W52 | 01 | 0010 | Alpha | Mar 8, 2003 | Mar 15, 2003 | Mar 28, 2003 |
| № 296 | N12 | W58 | 02 | 0400 | Beta-Gamma | 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.
