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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8367 | N17 | W25 | 10 | 0040 | BETA | Oct 23, 1998 | Oct 30, 1998 | Nov 12, 1998 |
| № 8366 | S16 | E21 | 07 | 0020 | BETA | Oct 26, 1998 | Nov 2, 1998 | Nov 16, 1998 |
| № 8365 | S27 | W59 | 13 | 0330 | BETA | Oct 20, 1998 | Oct 27, 1998 | Nov 10, 1998 |
| № 8363 | N25 | W60 | 01 | 0000 | ALPHA | Oct 20, 1998 | Oct 27, 1998 | Nov 10, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to October 1998. The gray background is the average SSN index.
