Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8859 | N22 | W49 | 05 | 0040 | BETA | Feb 1, 2000 | Feb 8, 2000 | Feb 22, 2000 |
| № 8858 | N24 | E74 | 01 | 0030 | ALPHA | Feb 11, 2000 | Feb 18, 2000 | Mar 2, 2000 |
| № 8857 | S19 | E06 | 04 | 0010 | BETA | Feb 5, 2000 | Feb 12, 2000 | Feb 26, 2000 |
| № 8856 | S13 | E71 | 03 | 0180 | BETA | Feb 10, 2000 | Feb 17, 2000 | Mar 2, 2000 |
| № 8855 | N17 | E43 | 02 | 0000 | BETA | Feb 8, 2000 | Feb 15, 2000 | Feb 29, 2000 |
| № 8854 | S34 | E61 | 05 | 0100 | BETA | Feb 10, 2000 | Feb 17, 2000 | Mar 2, 2000 |
| № 8853 | S11 | E43 | 03 | 0020 | BETA | Feb 8, 2000 | Feb 15, 2000 | Feb 28, 2000 |
| № 8851 | N26 | W08 | 19 | 0120 | BETA | Feb 4, 2000 | Feb 11, 2000 | Feb 25, 2000 |
| № 8848 | S08 | W27 | 06 | 0090 | BETA | Feb 3, 2000 | Feb 10, 2000 | Feb 23, 2000 |
| № 8841 | S32 | W94 | 01 | 0050 | ALPHA | Jan 28, 2000 | Feb 5, 2000 | Feb 19, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to February 2000. The gray background is the average SSN index.
