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) | |
|---|---|---|---|---|---|---|---|---|
| № 9159 | S19 | E33 | 02 | 0010 | BETA | Sep 11, 2000 | Sep 18, 2000 | Oct 2, 2000 |
| № 9158 | N30 | E72 | 01 | 0050 | ALPHA | Sep 15, 2000 | Sep 22, 2000 | Oct 6, 2000 |
| № 9157 | N23 | E52 | 03 | 0030 | BETA | Sep 13, 2000 | Sep 20, 2000 | Oct 4, 2000 |
| № 9156 | S28 | E38 | 01 | 0000 | ALPHA | Sep 12, 2000 | Sep 19, 2000 | Oct 3, 2000 |
| № 9154 | S18 | W33 | 24 | 0530 | BETA | Sep 6, 2000 | Sep 13, 2000 | Sep 27, 2000 |
| № 9152 | N19 | W16 | 01 | 0010 | ALPHA | Sep 8, 2000 | Sep 15, 2000 | Sep 28, 2000 |
| № 9151 | N12 | W45 | 12 | 0080 | BETA | Sep 5, 2000 | Sep 12, 2000 | Sep 26, 2000 |
| № 9149 | N15 | W60 | 14 | 0240 | BETA-GAMMA | Sep 4, 2000 | Sep 11, 2000 | Sep 25, 2000 |
| № 9147 | N07 | W65 | 01 | 0050 | ALPHA | Sep 4, 2000 | Sep 11, 2000 | Sep 24, 2000 |
| № 9145 | S07 | W88 | 01 | 0030 | ALPHA | Sep 2, 2000 | Sep 9, 2000 | Sep 23, 2000 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1971, January to 2000, September. Gray background - average solar cycle.
