Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 10, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9160 | S12 | E07 | 01 | 0010 | ALPHA | Sep 11, 2000 | Sep 18, 2000 | Oct 2, 2000 |
| № 9158 | N29 | E46 | 04 | 0060 | ALPHA | Sep 14, 2000 | Sep 22, 2000 | Oct 6, 2000 |
| № 9157 | N23 | E27 | 03 | 0020 | BETA | Sep 13, 2000 | Sep 20, 2000 | Oct 4, 2000 |
| № 9154 | S17 | W60 | 17 | 0420 | BETA | Sep 6, 2000 | Sep 13, 2000 | Sep 27, 2000 |
| № 9152 | N19 | W40 | 02 | 0010 | BETA | Sep 8, 2000 | Sep 15, 2000 | Sep 28, 2000 |
| № 9151 | N13 | W72 | 05 | 0040 | BETA | Sep 5, 2000 | Sep 12, 2000 | Sep 26, 2000 |
| № 9149 | N14 | W90 | 03 | 0210 | BETA | Sep 4, 2000 | Sep 11, 2000 | Sep 24, 2000 |
| № 9147 | N07 | W89 | 01 | 0120 | ALPHA | Sep 4, 2000 | Sep 11, 2000 | Sep 24, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to September 2000. The gray background is the average SSN index.
