Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on January 27, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8848 | S07 | E80 | 01 | 0010 | ALPHA | Feb 3, 2000 | Feb 10, 2000 | Feb 23, 2000 |
| № 8847 | S26 | W26 | 01 | 0000 | ALPHA | Jan 26, 2000 | Feb 2, 2000 | Feb 16, 2000 |
| № 8846 | N37 | E53 | 02 | 0000 | ALPHA | Feb 1, 2000 | Feb 8, 2000 | Feb 23, 2000 |
| № 8845 | S15 | E11 | 06 | 0040 | BETA | Jan 29, 2000 | Feb 5, 2000 | Feb 18, 2000 |
| № 8844 | N04 | W45 | 16 | 0210 | BETA | Jan 24, 2000 | Jan 31, 2000 | Feb 14, 2000 |
| № 8843 | N14 | W25 | 01 | 0000 | ALPHA | Jan 26, 2000 | Feb 2, 2000 | Feb 15, 2000 |
| № 8842 | S17 | W50 | 06 | 0020 | BETA | Jan 24, 2000 | Jan 31, 2000 | Feb 14, 2000 |
| № 8841 | S30 | E07 | 05 | 0150 | BETA | Jan 28, 2000 | Feb 4, 2000 | Feb 19, 2000 |
| № 8840 | S25 | W48 | 01 | 0000 | ALPHA | Jan 24, 2000 | Jan 31, 2000 | Feb 14, 2000 |
| № 8839 | N14 | W76 | 01 | 0000 | ALPHA | Jan 22, 2000 | Jan 29, 2000 | Feb 12, 2000 |
| № 8833 | N20 | W86 | 01 | 0120 | ALPHA | Jan 21, 2000 | Jan 28, 2000 | Feb 11, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to January 2000. The gray background is the average SSN index.
