Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 20, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 126 | S23 | E73 | 01 | 0060 | Alpha | Sep 27, 2002 | Oct 4, 2002 | Oct 18, 2002 |
| № 125 | S08 | E53 | 01 | 0020 | Alpha | Sep 25, 2002 | Oct 2, 2002 | Oct 15, 2002 |
| № 124 | N03 | W65 | 02 | 0010 | Beta | Sep 16, 2002 | Sep 23, 2002 | Oct 7, 2002 |
| № 123 | S14 | E02 | 09 | 0040 | Beta | Sep 21, 2002 | Sep 28, 2002 | Oct 12, 2002 |
| № 122 | S17 | E33 | 01 | 0040 | Alpha | Sep 24, 2002 | Oct 1, 2002 | Oct 14, 2002 |
| № 121 | S13 | E24 | 01 | 0040 | Alpha | Sep 23, 2002 | Sep 30, 2002 | Oct 13, 2002 |
| № 120 | S19 | E15 | 04 | 0020 | Beta | Sep 22, 2002 | Sep 29, 2002 | Oct 13, 2002 |
| № 119 | S14 | W12 | 18 | 0380 | Beta-Delta | Sep 20, 2002 | Sep 27, 2002 | Oct 11, 2002 |
| № 117 | S10 | E16 | 01 | 0200 | Alpha | Sep 22, 2002 | Sep 29, 2002 | Oct 13, 2002 |
| № 116 | N15 | W49 | 07 | 0050 | Beta | Sep 17, 2002 | Sep 24, 2002 | Oct 8, 2002 |
| № 115 | S03 | W27 | 15 | 0160 | Beta | Sep 19, 2002 | Sep 26, 2002 | Oct 9, 2002 |
| № 114 | S12 | W72 | 03 | 0120 | Beta | Sep 16, 2002 | Sep 23, 2002 | Oct 6, 2002 |
| № 107 | N12 | W82 | 02 | 0010 | Alpha | Sep 15, 2002 | Sep 22, 2002 | Oct 5, 2002 |
| № 105 | S08 | W85 | 01 | 0350 | Alpha | 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.
