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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 20, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8183 | N22 | E46 | 06 | 0080 | BETA | Mar 24, 1998 | Mar 31, 1998 | Apr 14, 1998 |
| № 8182 | S24 | W68 | 04 | 0030 | BETA | Mar 16, 1998 | Mar 23, 1998 | Apr 5, 1998 |
| № 8179 | S22 | W54 | 29 | 0720 | BETA-GAMMA | Mar 17, 1998 | Mar 24, 1998 | Apr 6, 1998 |
| № 8178 | S17 | W43 | 01 | 0050 | ALPHA | Mar 18, 1998 | Mar 24, 1998 | Apr 7, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to March 1998. The gray background is the average SSN index.
