Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 29, 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 | S23 | E65 | 02 | 0030 | BETA | Oct 5, 2000 | Oct 12, 2000 | Oct 26, 2000 |
| № 9177 | N29 | W09 | 02 | 0000 | ALPHA | Sep 29, 2000 | Oct 6, 2000 | Oct 20, 2000 |
| № 9176 | S09 | E59 | 09 | 0250 | BETA | Oct 4, 2000 | Oct 11, 2000 | Oct 25, 2000 |
| № 9175 | N22 | E46 | 03 | 0010 | BETA | Oct 3, 2000 | Oct 10, 2000 | Oct 24, 2000 |
| № 9173 | S12 | E27 | 25 | 0130 | BETA | Oct 2, 2000 | Oct 9, 2000 | Oct 22, 2000 |
| № 9172 | N12 | E20 | 03 | 0050 | BETA | Oct 1, 2000 | Oct 8, 2000 | Oct 22, 2000 |
| № 9171 | S13 | W07 | 04 | 0050 | BETA | Sep 29, 2000 | Oct 6, 2000 | Oct 20, 2000 |
| № 9170 | S06 | W61 | 10 | 0080 | BETA | Sep 25, 2000 | Oct 2, 2000 | Oct 16, 2000 |
| № 9169 | N12 | W56 | 51 | 0790 | BETA-GAMMA | Sep 26, 2000 | Oct 2, 2000 | Oct 16, 2000 |
| № 9167 | N16 | W79 | 02 | 0010 | BETA | Sep 24, 2000 | Oct 1, 2000 | Oct 14, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to September 2000. The gray background is the average SSN index.
