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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8390 | N18 | W45 | 03 | 0010 | BETA | Nov 15, 1998 | Nov 22, 1998 | Dec 6, 1998 |
| № 8389 | S20 | W60 | 01 | 0000 | ALPHA | Nov 14, 1998 | Nov 21, 1998 | Dec 5, 1998 |
| № 8388 | N24 | E19 | 04 | 0010 | BETA | Nov 20, 1998 | Nov 27, 1998 | Dec 11, 1998 |
| № 8387 | N22 | E04 | 06 | 0010 | BETA | Nov 19, 1998 | Nov 26, 1998 | Dec 10, 1998 |
| № 8384 | S27 | W22 | 08 | 0410 | BETA | Nov 17, 1998 | Nov 24, 1998 | Dec 8, 1998 |
| № 8383 | S13 | W41 | 10 | 0040 | BETA | Nov 16, 1998 | Nov 23, 1998 | Dec 6, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to November 1998. The gray background is the average SSN index.
