Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 37 | N16 | E71 | 01 | 0180 | Alpha | Jul 24, 2002 | Jul 30, 2002 | Aug 13, 2002 |
| № 36 | S07 | E61 | 09 | 0460 | Beta | Jul 23, 2002 | Jul 30, 2002 | Aug 12, 2002 |
| № 35 | S08 | E45 | 02 | 0020 | Beta | Jul 22, 2002 | Jul 28, 2002 | Aug 11, 2002 |
| № 33 | N09 | W44 | 02 | 0010 | Alpha | Jul 15, 2002 | Jul 22, 2002 | Aug 4, 2002 |
| № 32 | S19 | W58 | 01 | 0000 | Alpha | Jul 14, 2002 | Jul 21, 2002 | Aug 3, 2002 |
| № 31 | N12 | W03 | 02 | 0000 | Beta | Jul 18, 2002 | Jul 25, 2002 | Aug 7, 2002 |
| № 30 | N19 | W15 | 71 | 1350 | Beta-Gamma-Delta | Jul 17, 2002 | Jul 24, 2002 | Aug 7, 2002 |
| № 28 | S17 | W74 | 03 | 0030 | Beta | Jul 13, 2002 | Jul 19, 2002 | Aug 2, 2002 |
| № 25 | S18 | W83 | 01 | 0030 | Alpha | Jul 12, 2002 | Jul 19, 2002 | Aug 1, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to July 2002. The gray background is the average SSN index.
