Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8815 | N10 | E61 | 02 | 0030 | BETA | Jan 7, 2000 | Jan 13, 2000 | Jan 27, 2000 |
| № 8814 | N10 | E47 | 02 | 0130 | ALPHA | Jan 6, 2000 | Jan 12, 2000 | Jan 26, 2000 |
| № 8813 | S17 | E38 | 08 | 0040 | BETA | Jan 5, 2000 | Jan 12, 2000 | Jan 25, 2000 |
| № 8812 | S27 | W47 | 01 | 0000 | ALPHA | Dec 29, 1999 | Jan 5, 2000 | Jan 19, 2000 |
| № 8810 | N38 | W05 | 16 | 0330 | BETA | Jan 2, 2000 | Jan 9, 2000 | Jan 24, 2000 |
| № 8809 | N24 | W20 | 02 | 0000 | BETA | Dec 31, 1999 | Jan 7, 2000 | Jan 21, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to January 2000. The gray background is the average SSN index.
