Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 19, 2000. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9169 | N08 | E72 | 09 | 0870 | BETA | Sep 25, 2000 | Oct 2, 2000 | Oct 16, 2000 |
| № 9168 | N09 | W05 | 03 | 0040 | BETA | Sep 19, 2000 | Sep 26, 2000 | Oct 10, 2000 |
| № 9167 | N12 | E59 | 12 | 0320 | BETA-GAMMA | Sep 24, 2000 | Oct 1, 2000 | Oct 15, 2000 |
| № 9166 | S14 | E26 | 34 | 0570 | BETA-GAMMA | Sep 22, 2000 | Sep 29, 2000 | Oct 12, 2000 |
| № 9165 | N14 | W38 | 29 | 0200 | BETA-GAMMA | Sep 17, 2000 | Sep 24, 2000 | Oct 7, 2000 |
| № 9161 | N06 | W39 | 07 | 0040 | BETA | Sep 17, 2000 | Sep 24, 2000 | Oct 7, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to September 2000. The gray background is the average SSN index.
