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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 7, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9157 | N21 | E65 | 04 | 0010 | BETA | Sep 13, 2000 | Sep 20, 2000 | Oct 4, 2000 |
| № 9156 | S27 | E51 | 01 | 0000 | ALPHA | Sep 12, 2000 | Sep 19, 2000 | Oct 3, 2000 |
| № 9154 | S18 | W19 | 30 | 0510 | BETA-GAMMA | Sep 6, 2000 | Sep 13, 2000 | Sep 27, 2000 |
| № 9152 | N17 | W05 | 04 | 0010 | BETA | Sep 7, 2000 | Sep 14, 2000 | Sep 28, 2000 |
| № 9151 | N10 | W30 | 09 | 0060 | BETA | Sep 6, 2000 | Sep 12, 2000 | Sep 26, 2000 |
| № 9149 | N13 | W47 | 19 | 0270 | BETA-GAMMA | Sep 4, 2000 | Sep 11, 2000 | Sep 25, 2000 |
| № 9147 | N06 | W51 | 02 | 0070 | ALPHA | Sep 4, 2000 | Sep 11, 2000 | Sep 24, 2000 |
| № 9145 | S08 | W74 | 01 | 0060 | ALPHA | Sep 2, 2000 | Sep 9, 2000 | Sep 23, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to September 2000. The gray background is the average SSN index.
