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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 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) | |
|---|---|---|---|---|---|---|---|---|
| № 290 | N18 | E31 | 13 | 0080 | Beta-Gamma | Feb 23, 2003 | Mar 2, 2003 | Mar 16, 2003 |
| № 289 | N09 | W66 | 10 | 0140 | Beta | Feb 16, 2003 | Feb 23, 2003 | Mar 8, 2003 |
| № 288 | N13 | E15 | 04 | 0020 | Alpha | Feb 22, 2003 | Mar 1, 2003 | Mar 15, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to February 2003. The gray background is the average SSN index.
