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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8179 | S22 | E60 | 03 | 0010 | BETA | Mar 17, 1998 | Mar 24, 1998 | Apr 6, 1998 |
| № 8178 | S15 | E72 | 01 | 0100 | ALPHA | Mar 17, 1998 | Mar 24, 1998 | Apr 7, 1998 |
| № 8176 | S39 | E29 | 14 | 0110 | BETA | Mar 14, 1998 | Mar 22, 1998 | Apr 6, 1998 |
| № 8175 | N47 | E23 | 01 | 0030 | ALPHA | Mar 14, 1998 | Mar 22, 1998 | Apr 6, 1998 |
| № 8174 | S18 | W01 | 06 | 0030 | BETA | Mar 12, 1998 | Mar 19, 1998 | Apr 2, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to March 1998. The gray background is the average SSN index.
