Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 20, 2002. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 231 | S25 | E15 | 02 | 0020 | Beta | Dec 22, 2002 | Dec 29, 2002 | Jan 12, 2003 |
| № 230 | S08 | E34 | 12 | 0210 | Beta-Gamma | Dec 23, 2002 | Dec 30, 2002 | Jan 13, 2003 |
| № 229 | N19 | W01 | 21 | 0230 | Beta-Gamma | Dec 21, 2002 | Dec 28, 2002 | Jan 10, 2003 |
| № 228 | S17 | W01 | 02 | 0010 | Beta | Dec 21, 2002 | Dec 28, 2002 | Jan 10, 2003 |
| № 227 | N07 | W45 | 04 | 0030 | Beta | Dec 17, 2002 | Dec 24, 2002 | Jan 7, 2003 |
| № 226 | S28 | W26 | 45 | 0690 | Beta-Gamma-Delta | Dec 19, 2002 | Dec 26, 2002 | Jan 9, 2003 |
| № 225 | N17 | W16 | 06 | 0040 | Beta | Dec 20, 2002 | Dec 26, 2002 | Jan 9, 2003 |
| № 224 | S14 | W19 | 17 | 0050 | Beta | Dec 19, 2002 | Dec 26, 2002 | Jan 9, 2003 |
| № 223 | N25 | W17 | 04 | 0080 | Beta | Dec 20, 2002 | Dec 27, 2002 | Jan 9, 2003 |
| № 220 | S13 | W89 | 01 | 0000 | Alpha | Dec 14, 2002 | Dec 21, 2002 | Jan 4, 2003 |
| № 218 | S18 | W77 | 01 | 0000 | Alpha | Dec 15, 2002 | Dec 22, 2002 | Jan 5, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to December 2002. The gray background is the average SSN index.
