Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 128 | N11 | E60 | 01 | 0020 | Alpha | Sep 27, 2002 | Oct 4, 2002 | Oct 17, 2002 |
| № 127 | S14 | E16 | 10 | 0050 | Beta | Sep 23, 2002 | Sep 30, 2002 | Oct 14, 2002 |
| № 126 | S24 | E59 | 04 | 0180 | Beta | Sep 27, 2002 | Oct 4, 2002 | Oct 18, 2002 |
| № 125 | S09 | E37 | 03 | 0020 | Beta | Sep 25, 2002 | Oct 2, 2002 | Oct 15, 2002 |
| № 123 | S14 | W13 | 14 | 0090 | Beta | Sep 21, 2002 | Sep 28, 2002 | Oct 12, 2002 |
| № 122 | S18 | E18 | 01 | 0070 | Alpha | Sep 24, 2002 | Sep 30, 2002 | Oct 14, 2002 |
| № 121 | S13 | E09 | 01 | 0050 | Alpha | Sep 23, 2002 | Sep 30, 2002 | Oct 13, 2002 |
| № 120 | S18 | E00 | 04 | 0020 | Beta | Sep 22, 2002 | Sep 29, 2002 | Oct 13, 2002 |
| № 119 | S14 | W27 | 27 | 0500 | Beta-Gamma-Delta | Sep 20, 2002 | Sep 27, 2002 | Oct 11, 2002 |
| № 117 | S10 | E02 | 01 | 0180 | Alpha | Sep 22, 2002 | Sep 29, 2002 | Oct 13, 2002 |
| № 116 | N14 | W65 | 02 | 0040 | Beta | Sep 17, 2002 | Sep 24, 2002 | Oct 8, 2002 |
| № 115 | S04 | W41 | 13 | 0170 | Beta | Sep 19, 2002 | Sep 26, 2002 | Oct 9, 2002 |
| № 114 | S11 | W87 | 01 | 0110 | Alpha | Sep 16, 2002 | Sep 22, 2002 | Oct 6, 2002 |
| № 107 | N12 | W95 | 01 | 0020 | Alpha | Sep 15, 2002 | Sep 22, 2002 | Oct 5, 2002 |
| № 105 | S07 | W95 | 04 | 0210 | Beta | 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.
