No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8333 | N12 | W39 | 04 | 0020 | BETA | Sep 9, 1998 | Sep 16, 1998 | Sep 29, 1998 |
| № 8331 | N26 | E26 | 15 | 0190 | BETA | Sep 14, 1998 | Sep 21, 1998 | Oct 5, 1998 |
| № 8330 | S22 | E26 | 01 | 0040 | ALPHA | Sep 14, 1998 | Sep 21, 1998 | Oct 5, 1998 |
| № 8329 | N14 | W16 | 11 | 0200 | BETA | Sep 11, 1998 | Sep 17, 1998 | Oct 1, 1998 |
| № 8328 | S17 | W06 | 05 | 0090 | BETA | Sep 11, 1998 | Sep 18, 1998 | Oct 2, 1998 |
| № 8327 | N28 | W11 | 01 | 0000 | ALPHA | Sep 11, 1998 | Sep 18, 1998 | Oct 2, 1998 |
| № 8326 | N22 | W10 | 05 | 0020 | BETA | Sep 11, 1998 | Sep 18, 1998 | Oct 2, 1998 |
| № 8323 | S27 | W82 | 01 | 0080 | ALPHA | Sep 5, 1998 | Sep 12, 1998 | Sep 26, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to September 1998. The gray background is the average SSN index.
