Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 7, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8821 | N25 | E80 | 01 | 0050 | ALPHA | Jan 14, 2000 | Jan 21, 2000 | Feb 4, 2000 |
| № 8820 | S16 | E71 | 01 | 0050 | ALPHA | Jan 13, 2000 | Jan 20, 2000 | Feb 3, 2000 |
| № 8819 | N10 | W25 | 03 | 0000 | BETA | Jan 6, 2000 | Jan 13, 2000 | Jan 26, 2000 |
| № 8818 | S11 | W46 | 02 | 0010 | BETA | Jan 5, 2000 | Jan 11, 2000 | Jan 25, 2000 |
| № 8817 | N24 | W17 | 07 | 0020 | BETA | Jan 7, 2000 | Jan 14, 2000 | Jan 28, 2000 |
| № 8816 | N20 | W43 | 07 | 0050 | BETA | Jan 5, 2000 | Jan 12, 2000 | Jan 25, 2000 |
| № 8815 | N10 | W17 | 10 | 0020 | BETA | Jan 7, 2000 | Jan 14, 2000 | Jan 27, 2000 |
| № 8814 | N12 | W33 | 04 | 0080 | BETA | Jan 6, 2000 | Jan 12, 2000 | Jan 26, 2000 |
| № 8813 | S16 | W47 | 07 | 0130 | BETA | Jan 4, 2000 | Jan 11, 2000 | Jan 25, 2000 |
| № 8810 | N38 | W78 | 03 | 0120 | 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.
