Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 139 | N14 | E59 | 05 | 0160 | Beta | Oct 9, 2002 | Oct 16, 2002 | Oct 30, 2002 |
| № 138 | N10 | W37 | 03 | 0020 | Alpha | Oct 2, 2002 | Oct 9, 2002 | Oct 23, 2002 |
| № 137 | S19 | W05 | 19 | 0310 | Beta-Gamma | Oct 5, 2002 | Oct 11, 2002 | Oct 25, 2002 |
| № 134 | N14 | W42 | 14 | 0230 | Beta-Gamma | Oct 2, 2002 | Oct 9, 2002 | Oct 22, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to October 2002. The gray background is the average SSN index.
