Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9155 | S10 | E18 | 07 | 0020 | BETA | Sep 7, 2000 | Sep 14, 2000 | Sep 28, 2000 |
| № 9154 | S19 | E06 | 27 | 0160 | BETA | Sep 6, 2000 | Sep 13, 2000 | Sep 27, 2000 |
| № 9153 | S32 | W23 | 08 | 0020 | BETA | Sep 4, 2000 | Sep 11, 2000 | Sep 26, 2000 |
| № 9152 | N18 | E22 | 01 | 0020 | ALPHA | Sep 8, 2000 | Sep 15, 2000 | Sep 28, 2000 |
| № 9151 | N09 | W09 | 03 | 0010 | BETA | Sep 5, 2000 | Sep 12, 2000 | Sep 26, 2000 |
| № 9149 | N14 | W22 | 27 | 0220 | BETA | Sep 4, 2000 | Sep 11, 2000 | Sep 25, 2000 |
| № 9147 | N08 | W22 | 04 | 0060 | BETA | Sep 4, 2000 | Sep 11, 2000 | Sep 25, 2000 |
| № 9145 | S08 | W50 | 01 | 0030 | ALPHA | Sep 2, 2000 | Sep 9, 2000 | Sep 23, 2000 |
| № 9143 | S19 | W75 | 01 | 0000 | ALPHA | Aug 31, 2000 | Sep 7, 2000 | Sep 21, 2000 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1971, January to 2000, September. Gray background - average solar cycle.
