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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 9, 1998. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8299 | N17 | E61 | 03 | 0130 | ALPHA | Aug 15, 1998 | Aug 21, 1998 | Sep 4, 1998 |
| № 8298 | N19 | E03 | 02 | 0000 | BETA | Aug 10, 1998 | Aug 17, 1998 | Aug 31, 1998 |
| № 8297 | N30 | E47 | 02 | 0330 | ALPHA | Aug 14, 1998 | Aug 21, 1998 | Sep 4, 1998 |
| № 8296 | N16 | E31 | 02 | 0010 | BETA | Aug 12, 1998 | Aug 19, 1998 | Sep 2, 1998 |
| № 8295 | N13 | W65 | 05 | 0010 | BETA | Aug 5, 1998 | Aug 12, 1998 | Aug 25, 1998 |
| № 8293 | S22 | W03 | 34 | 0470 | BETA-GAMMA | Aug 10, 1998 | Aug 17, 1998 | Aug 30, 1998 |
| № 8283 | N28 | W80 | 09 | 0110 | BETA | Aug 4, 1998 | Aug 11, 1998 | Aug 25, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to August 1998. The gray background is the average SSN index.
