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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 14, 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 | N22 | E46 | 10 | 0120 | BETA | May 19, 1998 | May 26, 1998 | Jun 8, 1998 |
| № 8220 | S28 | E44 | 13 | 0120 | BETA | May 19, 1998 | May 26, 1998 | Jun 9, 1998 |
| № 8218 | S20 | W20 | 26 | 0210 | BETA | May 14, 1998 | May 21, 1998 | Jun 3, 1998 |
| № 8217 | S16 | W73 | 01 | 0040 | ALPHA | May 10, 1998 | May 16, 1998 | May 30, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to May 1998. The gray background is the average SSN index.
