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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 260 | N14 | E53 | 03 | 0070 | Beta | Jan 23, 2003 | Jan 30, 2003 | Feb 12, 2003 |
| № 259 | N09 | E26 | 17 | 0060 | Beta | Jan 21, 2003 | Jan 28, 2003 | Feb 10, 2003 |
| № 258 | N07 | E12 | 01 | 0070 | Alpha | Jan 20, 2003 | Jan 27, 2003 | Feb 9, 2003 |
| № 257 | N16 | W36 | 03 | 0010 | Beta | Jan 16, 2003 | Jan 23, 2003 | Feb 6, 2003 |
| № 256 | S16 | W12 | 05 | 0040 | Beta | Jan 18, 2003 | Jan 25, 2003 | Feb 8, 2003 |
| № 255 | S12 | W53 | 06 | 0130 | Beta | Jan 15, 2003 | Jan 22, 2003 | Feb 4, 2003 |
| № 254 | S14 | W24 | 01 | 0110 | Alpha | Jan 17, 2003 | Jan 24, 2003 | Feb 7, 2003 |
| № 251 | S16 | W41 | 06 | 0010 | Beta | Jan 16, 2003 | Jan 23, 2003 | Feb 5, 2003 |
| № 250 | S26 | W50 | 05 | 0120 | Beta | Jan 15, 2003 | Jan 22, 2003 | Feb 5, 2003 |
| № 247 | S13 | W76 | 03 | 0010 | Beta | Jan 13, 2003 | Jan 20, 2003 | Feb 3, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to January 2003. The gray background is the average SSN index.
