Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 8135 | S17 | E56 | 02 | 0010 | BETA | Jan 20, 1998 | Jan 27, 1998 | Feb 10, 1998 |
| № 8131 | S22 | W22 | 21 | 0180 | BETA-GAMMA | Jan 14, 1998 | Jan 21, 1998 | Feb 4, 1998 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1969, January to 1998, January. Gray background - average solar cycle.
