Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 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) | |
|---|---|---|---|---|---|---|---|---|
| № 123 | S16 | E26 | 03 | 0020 | Alpha | Sep 21, 2002 | Sep 28, 2002 | Oct 12, 2002 |
| № 122 | S18 | E58 | 01 | 0060 | Alpha | Sep 24, 2002 | Oct 1, 2002 | Oct 14, 2002 |
| № 121 | S14 | E49 | 01 | 0060 | Alpha | Sep 23, 2002 | Sep 30, 2002 | Oct 13, 2002 |
| № 120 | S19 | E39 | 04 | 0040 | Beta | Sep 22, 2002 | Sep 29, 2002 | Oct 13, 2002 |
| № 119 | S14 | E13 | 10 | 0090 | Beta | Sep 20, 2002 | Sep 27, 2002 | Oct 11, 2002 |
| № 118 | N13 | W05 | 04 | 0010 | Beta | Sep 19, 2002 | Sep 26, 2002 | Oct 9, 2002 |
| № 117 | S10 | E42 | 02 | 0150 | Beta | Sep 22, 2002 | Sep 29, 2002 | Oct 13, 2002 |
| № 116 | N15 | W24 | 08 | 0030 | Beta | Sep 17, 2002 | Sep 24, 2002 | Oct 8, 2002 |
| № 115 | S03 | W02 | 20 | 0210 | Beta | Sep 19, 2002 | Sep 26, 2002 | Oct 9, 2002 |
| № 114 | S11 | W47 | 14 | 0130 | Beta | Sep 16, 2002 | Sep 23, 2002 | Oct 6, 2002 |
| № 110 | N17 | W79 | 01 | 0030 | Alpha | Sep 13, 2002 | Sep 20, 2002 | Oct 4, 2002 |
| № 107 | N11 | W56 | 04 | 0090 | Beta | Sep 15, 2002 | Sep 22, 2002 | Oct 5, 2002 |
| № 105 | S08 | W60 | 26 | 0560 | Beta-Gamma | Sep 15, 2002 | Sep 22, 2002 | Oct 5, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to September 2002. The gray background is the average SSN index.
