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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 4, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8233 | N28 | E61 | 02 | 0010 | BETA | Jun 10, 1998 | Jun 17, 1998 | Jul 1, 1998 |
| № 8232 | S19 | E60 | 03 | 0280 | BETA | Jun 10, 1998 | Jun 17, 1998 | Jun 30, 1998 |
| № 8230 | S20 | E07 | 16 | 0200 | BETA | Jun 6, 1998 | Jun 13, 1998 | Jun 26, 1998 |
| № 8227 | N27 | W45 | 04 | 0110 | ALPHA | Jun 2, 1998 | Jun 9, 1998 | Jun 23, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to June 1998. The gray background is the average SSN index.
