Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 8814 | N11 | E73 | 02 | 0100 | ALPHA | Jan 6, 2000 | Jan 12, 2000 | Jan 26, 2000 |
| № 8813 | S15 | E64 | 05 | 0040 | BETA | Jan 5, 2000 | Jan 12, 2000 | Jan 25, 2000 |
| № 8812 | S28 | W21 | 03 | 0010 | BETA | Dec 29, 1999 | Jan 5, 2000 | Jan 19, 2000 |
| № 8811 | S30 | W63 | 02 | 0010 | BETA | Dec 26, 1999 | Jan 2, 2000 | Jan 16, 2000 |
| № 8810 | N37 | E19 | 17 | 0350 | BETA | Jan 2, 2000 | Jan 9, 2000 | Jan 23, 2000 |
| № 8809 | N22 | E02 | 06 | 0030 | BETA | Dec 31, 1999 | Jan 7, 2000 | Jan 21, 2000 |
| № 8806 | N18 | W83 | 07 | 0390 | BETA | Dec 25, 1999 | Jan 1, 2000 | Jan 14, 2000 |
| № 8804 | S18 | W91 | 01 | 0100 | ALPHA | Dec 24, 1999 | Dec 31, 1999 | Jan 14, 2000 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1970, January to 1999, December. Gray background - average solar cycle.
