Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 162 | N25 | E76 | 01 | 0160 | Alpha | Oct 25, 2002 | Nov 1, 2002 | Nov 15, 2002 |
| № 161 | N06 | W26 | 07 | 0020 | Beta | Oct 17, 2002 | Oct 24, 2002 | Nov 6, 2002 |
| № 160 | S20 | E15 | 18 | 0140 | Beta | Oct 20, 2002 | Oct 27, 2002 | Nov 10, 2002 |
| № 159 | S11 | E18 | 08 | 0160 | Beta | Oct 20, 2002 | Oct 27, 2002 | Nov 10, 2002 |
| № 158 | S08 | E11 | 16 | 0140 | Beta-Gamma | Oct 20, 2002 | Oct 27, 2002 | Nov 9, 2002 |
| № 157 | N15 | W19 | 02 | 0010 | Beta | Oct 18, 2002 | Oct 24, 2002 | Nov 7, 2002 |
| № 154 | S12 | W18 | 10 | 0020 | Beta | Oct 18, 2002 | Oct 24, 2002 | Nov 7, 2002 |
| № 149 | N14 | W33 | 29 | 0400 | Beta | Oct 17, 2002 | Oct 23, 2002 | Nov 6, 2002 |
| № 148 | S20 | W35 | 01 | 0020 | Alpha | Oct 16, 2002 | Oct 23, 2002 | Nov 6, 2002 |
| № 145 | N12 | W44 | 01 | 0070 | Alpha | Oct 16, 2002 | Oct 22, 2002 | Nov 5, 2002 |
| № 144 | N11 | W91 | 01 | 0030 | Alpha | Oct 12, 2002 | Oct 19, 2002 | Nov 2, 2002 |
| № 140 | S08 | W91 | 01 | 0040 | 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.
