Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 31, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 239 | S10 | E26 | 09 | 0040 | Beta | Jan 3, 2003 | Jan 10, 2003 | Jan 23, 2003 |
| № 235 | N14 | W33 | 03 | 0020 | Beta | Dec 29, 2002 | Jan 5, 2003 | Jan 19, 2003 |
| № 234 | N18 | W06 | 02 | 0030 | Alpha | Dec 31, 2002 | Jan 7, 2003 | Jan 21, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to December 2002. The gray background is the average SSN index.
