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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8222 | N23 | W52 | 07 | 0060 | BETA | May 19, 1998 | May 26, 1998 | Jun 9, 1998 |
| № 8220 | S26 | W60 | 02 | 0000 | ALPHA | May 18, 1998 | May 25, 1998 | Jun 8, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to May 1998. The gray background is the average SSN index.
