Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 113 | N30 | W37 | 01 | 0010 | Alpha | Sep 11, 2002 | Sep 18, 2002 | Oct 2, 2002 |
| № 112 | N00 | E05 | 05 | 0010 | Alpha | Sep 14, 2002 | Sep 21, 2002 | Oct 5, 2002 |
| № 111 | N11 | E02 | 06 | 0010 | Beta | Sep 14, 2002 | Sep 21, 2002 | Oct 4, 2002 |
| № 110 | N19 | W08 | 09 | 0030 | Beta | Sep 13, 2002 | Sep 20, 2002 | Oct 4, 2002 |
| № 109 | S08 | W09 | 15 | 0060 | Beta | Sep 13, 2002 | Sep 20, 2002 | Oct 4, 2002 |
| № 108 | S24 | E21 | 01 | 0000 | Alpha | Sep 16, 2002 | Sep 22, 2002 | Oct 6, 2002 |
| № 107 | N11 | E17 | 20 | 0190 | Beta | Sep 15, 2002 | Sep 22, 2002 | Oct 6, 2002 |
| № 105 | S08 | E17 | 58 | 1180 | Beta-Gamma-Delta | Sep 15, 2002 | Sep 22, 2002 | Oct 6, 2002 |
| № 104 | N09 | W09 | 02 | 0000 | Alpha | Sep 13, 2002 | Sep 20, 2002 | Oct 4, 2002 |
| № 103 | N16 | W44 | 28 | 0330 | Beta | Sep 11, 2002 | Sep 17, 2002 | Oct 1, 2002 |
| № 100 | S16 | W74 | 03 | 0030 | Beta | Sep 8, 2002 | Sep 15, 2002 | Sep 29, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to September 2002. The gray background is the average SSN index.
