Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9173 | S14 | E74 | 01 | 0030 | ALPHA | Oct 1, 2000 | Oct 8, 2000 | Oct 22, 2000 |
| № 9172 | N12 | E72 | 01 | 0050 | ALPHA | Oct 1, 2000 | Oct 8, 2000 | Oct 22, 2000 |
| № 9171 | S15 | E49 | 03 | 0080 | BETA | Sep 30, 2000 | Oct 6, 2000 | Oct 20, 2000 |
| № 9170 | S05 | W12 | 17 | 0100 | BETA | Sep 25, 2000 | Oct 2, 2000 | Oct 15, 2000 |
| № 9169 | N11 | W07 | 119 | 1930 | BETA-GAMMA-DELTA | Sep 25, 2000 | Oct 2, 2000 | Oct 16, 2000 |
| № 9167 | N15 | W26 | 06 | 0080 | BETA | Sep 24, 2000 | Oct 1, 2000 | Oct 14, 2000 |
| № 9166 | S11 | W54 | 38 | 0340 | BETA-GAMMA | Sep 22, 2000 | Sep 29, 2000 | Oct 12, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to September 2000. The gray background is the average SSN index.
