Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 4, 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 | E22 | 15 | 0050 | BETA | Jan 7, 2000 | Jan 13, 2000 | Jan 27, 2000 |
| № 8814 | N11 | E08 | 04 | 0140 | BETA | Jan 6, 2000 | Jan 12, 2000 | Jan 26, 2000 |
| № 8813 | S16 | W07 | 14 | 0130 | BETA | Jan 4, 2000 | Jan 11, 2000 | Jan 25, 2000 |
| № 8810 | N38 | W42 | 04 | 0160 | BETA | Jan 2, 2000 | Jan 9, 2000 | Jan 24, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to January 2000. The gray background is the average SSN index.
