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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8391 | S17 | E31 | 18 | 0060 | BETA | Nov 25, 1998 | Dec 1, 1998 | Dec 15, 1998 |
| № 8384 | S28 | W65 | 07 | 0350 | BETA | Nov 17, 1998 | Nov 24, 1998 | Dec 8, 1998 |
| № 8383 | S16 | W76 | 03 | 0020 | BETA | Nov 16, 1998 | Nov 23, 1998 | Dec 7, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to November 1998. The gray background is the average SSN index.
