Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8841 | S28 | E72 | 03 | 0030 | BETA | Jan 28, 2000 | Feb 5, 2000 | Feb 19, 2000 |
| № 8840 | S24 | E24 | 04 | 0000 | BETA | Jan 25, 2000 | Feb 1, 2000 | Feb 15, 2000 |
| № 8839 | N12 | W05 | 11 | 0060 | BETA | Jan 22, 2000 | Jan 29, 2000 | Feb 12, 2000 |
| № 8838 | N13 | E29 | 09 | 0050 | BETA | Jan 25, 2000 | Feb 1, 2000 | Feb 14, 2000 |
| № 8837 | S07 | W67 | 06 | 0580 | BETA | Jan 18, 2000 | Jan 25, 2000 | Feb 7, 2000 |
| № 8836 | S13 | W13 | 02 | 0000 | ALPHA | Jan 22, 2000 | Jan 29, 2000 | Feb 11, 2000 |
| № 8833 | N18 | W22 | 06 | 0180 | BETA | Jan 21, 2000 | Jan 28, 2000 | Feb 11, 2000 |
| № 8831 | S18 | W36 | 11 | 0180 | BETA | Jan 20, 2000 | Jan 27, 2000 | Feb 10, 2000 |
| № 8829 | N16 | W57 | 02 | 0060 | ALPHA | Jan 19, 2000 | Jan 25, 2000 | Feb 8, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to January 2000. The gray background is the average SSN index.
