Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 161 | N06 | W12 | 05 | 0030 | Beta | Oct 17, 2002 | Oct 24, 2002 | Nov 6, 2002 |
| № 160 | S20 | E29 | 17 | 0160 | Beta | Oct 20, 2002 | Oct 27, 2002 | Nov 10, 2002 |
| № 159 | S11 | E32 | 05 | 0190 | Beta | Oct 20, 2002 | Oct 27, 2002 | Nov 10, 2002 |
| № 158 | S08 | E22 | 04 | 0120 | Beta | Oct 20, 2002 | Oct 26, 2002 | Nov 9, 2002 |
| № 154 | S12 | W04 | 12 | 0050 | Beta | Oct 18, 2002 | Oct 24, 2002 | Nov 7, 2002 |
| № 149 | N14 | W19 | 33 | 0480 | Beta-Gamma | Oct 16, 2002 | Oct 23, 2002 | Nov 6, 2002 |
| № 148 | S20 | W21 | 01 | 0020 | Alpha | Oct 16, 2002 | Oct 23, 2002 | Nov 6, 2002 |
| № 145 | N12 | W30 | 02 | 0080 | Alpha | Oct 16, 2002 | Oct 22, 2002 | Nov 5, 2002 |
| № 144 | N11 | W77 | 01 | 0060 | Alpha | Oct 12, 2002 | Oct 19, 2002 | Nov 2, 2002 |
| № 140 | S08 | W77 | 02 | 0140 | Alpha | Oct 12, 2002 | Oct 19, 2002 | Nov 1, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to October 2002. The gray background is the average SSN index.
