Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9178 | S22 | E51 | 05 | 0050 | BETA | Oct 5, 2000 | Oct 12, 2000 | Oct 26, 2000 |
| № 9177 | N30 | W21 | 03 | 0010 | BETA | Sep 29, 2000 | Oct 6, 2000 | Oct 20, 2000 |
| № 9176 | S09 | E47 | 16 | 0410 | BETA | Oct 4, 2000 | Oct 11, 2000 | Oct 25, 2000 |
| № 9175 | N22 | E34 | 02 | 0000 | ALPHA | Oct 3, 2000 | Oct 10, 2000 | Oct 24, 2000 |
| № 9173 | S12 | E15 | 25 | 0220 | BETA | Oct 2, 2000 | Oct 9, 2000 | Oct 22, 2000 |
| № 9172 | N12 | E10 | 05 | 0050 | BETA | Oct 2, 2000 | Oct 8, 2000 | Oct 22, 2000 |
| № 9171 | S13 | W20 | 04 | 0040 | BETA | Sep 29, 2000 | Oct 6, 2000 | Oct 20, 2000 |
| № 9170 | S05 | W77 | 04 | 0030 | BETA | Sep 25, 2000 | Oct 2, 2000 | Oct 15, 2000 |
| № 9169 | N12 | W75 | 10 | 0720 | BETA | Sep 25, 2000 | Oct 2, 2000 | Oct 16, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to September 2000. The gray background is the average SSN index.
