Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 18, 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 | N13 | E58 | 01 | 0190 | Alpha | Jul 24, 2002 | Jul 30, 2002 | Aug 13, 2002 |
| № 36 | S09 | E48 | 18 | 0670 | Beta-Gamma-Delta | Jul 23, 2002 | Jul 30, 2002 | Aug 12, 2002 |
| № 35 | S10 | E30 | 04 | 0030 | Beta | Jul 21, 2002 | Jul 28, 2002 | Aug 11, 2002 |
| № 30 | N19 | W28 | 93 | 1280 | Beta-Gamma-Delta | Jul 17, 2002 | Jul 24, 2002 | Aug 7, 2002 |
| № 29 | S12 | W77 | 02 | 0020 | Beta | Jul 13, 2002 | Jul 20, 2002 | Aug 3, 2002 |
| № 28 | S15 | W89 | 01 | 0140 | Alpha | Jul 12, 2002 | Jul 19, 2002 | Aug 2, 2002 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1973 to July 2002. The gray background is the average SSN index.
