Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8879 | N21 | E76 | 01 | 0110 | ALPHA | Feb 25, 2000 | Mar 3, 2000 | Mar 16, 2000 |
| № 8878 | S26 | W53 | 03 | 0050 | BETA | Feb 15, 2000 | Feb 22, 2000 | Mar 7, 2000 |
| № 8876 | S12 | E35 | 04 | 0040 | BETA | Feb 21, 2000 | Feb 28, 2000 | Mar 13, 2000 |
| № 8875 | S22 | E30 | 05 | 0020 | BETA | Feb 21, 2000 | Feb 28, 2000 | Mar 13, 2000 |
| № 8872 | S29 | E04 | 06 | 0020 | BETA | Feb 19, 2000 | Feb 26, 2000 | Mar 11, 2000 |
| № 8870 | N19 | W12 | 01 | 0070 | ALPHA | Feb 18, 2000 | Feb 25, 2000 | Mar 10, 2000 |
| № 8869 | S22 | W19 | 22 | 0150 | BETA | Feb 17, 2000 | Feb 24, 2000 | Mar 9, 2000 |
| № 8868 | S23 | W72 | 01 | 0000 | ALPHA | Feb 13, 2000 | Feb 20, 2000 | Mar 5, 2000 |
| № 8867 | S16 | W71 | 08 | 0100 | BETA | Feb 13, 2000 | Feb 20, 2000 | Mar 5, 2000 |
| № 8862 | S06 | W70 | 01 | 0110 | ALPHA | Feb 14, 2000 | Feb 20, 2000 | Mar 5, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to February 2000. The gray background is the average SSN index.
