Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 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) | |
|---|---|---|---|---|---|---|---|---|
| № 85 | S11 | E58 | 03 | 0480 | Beta | Aug 26, 2002 | Sep 2, 2002 | Sep 16, 2002 |
| № 84 | S17 | E41 | 05 | 0100 | Beta | Aug 25, 2002 | Sep 1, 2002 | Sep 15, 2002 |
| № 83 | S17 | E27 | 05 | 0030 | Beta | Aug 24, 2002 | Aug 31, 2002 | Sep 13, 2002 |
| № 80 | N16 | W08 | 13 | 0120 | Beta | Aug 21, 2002 | Aug 28, 2002 | Sep 11, 2002 |
| № 79 | S22 | W20 | 31 | 0230 | Beta | Aug 20, 2002 | Aug 27, 2002 | Sep 10, 2002 |
| № 76 | N13 | W27 | 01 | 0010 | Alpha | Aug 20, 2002 | Aug 27, 2002 | Sep 9, 2002 |
| № 69 | S08 | W42 | 47 | 1850 | Beta-Gamma-Delta | Aug 19, 2002 | Aug 25, 2002 | Sep 8, 2002 |
| № 67 | N10 | W60 | 11 | 0080 | Beta | Aug 17, 2002 | Aug 24, 2002 | Sep 7, 2002 |
| № 66 | N15 | W71 | 03 | 0040 | Alpha | Aug 16, 2002 | Aug 23, 2002 | Sep 6, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to August 2002. The gray background is the average SSN index.
