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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 24, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8315 | N25 | E59 | 01 | 0000 | ALPHA | Aug 29, 1998 | Sep 5, 1998 | Sep 19, 1998 |
| № 8314 | N17 | E57 | 06 | 0020 | BETA | Aug 29, 1998 | Sep 5, 1998 | Sep 19, 1998 |
| № 8310 | N24 | E34 | 02 | 0010 | ALPHA | Aug 27, 1998 | Sep 3, 1998 | Sep 17, 1998 |
| № 8309 | N15 | W24 | 13 | 0070 | BETA | Aug 23, 1998 | Aug 30, 1998 | Sep 13, 1998 |
| № 8308 | S22 | E09 | 01 | 0090 | ALPHA | Aug 26, 1998 | Sep 1, 1998 | Sep 15, 1998 |
| № 8307 | N31 | E23 | 12 | 0450 | BETA-DELTA | Aug 27, 1998 | Sep 3, 1998 | Sep 17, 1998 |
| № 8304 | S27 | W36 | 02 | 0030 | BETA | Aug 22, 1998 | Aug 29, 1998 | Sep 12, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to August 1998. The gray background is the average SSN index.
