Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 31, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9150 | N11 | E64 | 01 | 0000 | ALPHA | Sep 6, 2000 | Sep 13, 2000 | Sep 26, 2000 |
| № 9149 | N11 | E44 | 19 | 0330 | BETA | Sep 4, 2000 | Sep 11, 2000 | Sep 25, 2000 |
| № 9148 | S19 | E19 | 01 | 0000 | ALPHA | Sep 2, 2000 | Sep 9, 2000 | Sep 23, 2000 |
| № 9147 | N05 | E39 | 02 | 0110 | ALPHA | Sep 4, 2000 | Sep 11, 2000 | Sep 24, 2000 |
| № 9145 | S11 | E20 | 05 | 0080 | BETA | Sep 3, 2000 | Sep 9, 2000 | Sep 23, 2000 |
| № 9144 | N27 | W51 | 14 | 0120 | BETA | Aug 28, 2000 | Sep 4, 2000 | Sep 18, 2000 |
| № 9143 | S18 | W07 | 20 | 0190 | BETA | Aug 31, 2000 | Sep 7, 2000 | Sep 21, 2000 |
| № 9142 | N16 | W05 | 01 | 0020 | ALPHA | Sep 1, 2000 | Sep 7, 2000 | Sep 21, 2000 |
| № 9140 | N12 | W39 | 23 | 0140 | BETA-GAMMA | Aug 29, 2000 | Sep 5, 2000 | Sep 18, 2000 |
| № 9138 | S28 | W76 | 01 | 0000 | ALPHA | Aug 26, 2000 | Sep 2, 2000 | Sep 16, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to August 2000. The gray background is the average SSN index.
