Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9170 | S07 | E29 | 08 | 0040 | BETA | Sep 25, 2000 | Oct 2, 2000 | Oct 15, 2000 |
| № 9169 | N09 | E33 | 68 | 1910 | BETA-GAMMA-DELTA | Sep 25, 2000 | Oct 2, 2000 | Oct 16, 2000 |
| № 9167 | N12 | E18 | 20 | 0160 | BETA | Sep 24, 2000 | Oct 1, 2000 | Oct 15, 2000 |
| № 9166 | S12 | W15 | 49 | 0760 | BETA-GAMMA | Sep 22, 2000 | Sep 29, 2000 | Oct 12, 2000 |
| № 9165 | N16 | W79 | 03 | 0030 | ALPHA | 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.
