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) | |
|---|---|---|---|---|---|---|---|---|
| № 9173 | S13 | E60 | 01 | 0070 | ALPHA | Oct 2, 2000 | Oct 8, 2000 | Oct 22, 2000 |
| № 9172 | N12 | E58 | 06 | 0100 | BETA | Oct 1, 2000 | Oct 8, 2000 | Oct 22, 2000 |
| № 9171 | S15 | E33 | 03 | 0080 | BETA | Sep 30, 2000 | Oct 6, 2000 | Oct 20, 2000 |
| № 9170 | S06 | W27 | 19 | 0080 | BETA | Sep 25, 2000 | Oct 2, 2000 | Oct 15, 2000 |
| № 9169 | N11 | W22 | 88 | 1450 | BETA-GAMMA-DELTA | Sep 25, 2000 | Oct 2, 2000 | Oct 16, 2000 |
| № 9167 | N15 | W42 | 05 | 0080 | BETA | Sep 24, 2000 | Oct 1, 2000 | Oct 14, 2000 |
| № 9166 | S12 | W70 | 23 | 0380 | BETA | Sep 22, 2000 | Sep 29, 2000 | Oct 12, 2000 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1971, January to 2000, September. Gray background - average solar cycle.
