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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 10, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8131 | S26 | E29 | 04 | 0010 | BETA | Jan 13, 1998 | Jan 20, 1998 | Feb 3, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to January 1998. The gray background is the average SSN index.
