No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 31, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8190 | S20 | E58 | 05 | 0100 | BETA | Apr 5, 1998 | Apr 12, 1998 | Apr 26, 1998 |
| № 8189 | S26 | W53 | 04 | 0020 | BETA | Mar 28, 1998 | Apr 4, 1998 | Apr 18, 1998 |
| № 8188 | N30 | W08 | 01 | 0000 | ALPHA | Mar 31, 1998 | Apr 7, 1998 | Apr 21, 1998 |
| № 8185 | S25 | W37 | 16 | 0390 | BETA-GAMMA | Mar 29, 1998 | Apr 5, 1998 | Apr 19, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to March 1998. The gray background is the average SSN index.
