No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8222 | N22 | E07 | 21 | 0180 | BETA | May 19, 1998 | May 26, 1998 | Jun 8, 1998 |
| № 8220 | S28 | E05 | 23 | 0050 | BETA | May 19, 1998 | May 26, 1998 | Jun 9, 1998 |
| № 8218 | S21 | W59 | 18 | 0270 | BETA | May 14, 1998 | May 21, 1998 | Jun 3, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to May 1998. The gray background is the average SSN index.
