No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 17, 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 | W15 | 50 | 0800 | BETA-GAMMA | Mar 17, 1998 | Mar 24, 1998 | Apr 6, 1998 |
| № 8178 | S16 | W04 | 02 | 0130 | ALPHA | Mar 18, 1998 | Mar 24, 1998 | Apr 7, 1998 |
| № 8176 | S40 | W40 | 10 | 0060 | BETA | Mar 15, 1998 | Mar 22, 1998 | Apr 6, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to March 1998. The gray background is the average SSN index.
