Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8878 | S27 | W41 | 04 | 0030 | BETA | Feb 15, 2000 | Feb 22, 2000 | Mar 7, 2000 |
| № 8877 | S26 | E29 | 01 | 0010 | ALPHA | Feb 20, 2000 | Feb 27, 2000 | Mar 12, 2000 |
| № 8876 | S13 | E49 | 07 | 0050 | BETA | Feb 22, 2000 | Feb 28, 2000 | Mar 13, 2000 |
| № 8875 | S22 | E41 | 04 | 0020 | BETA | Feb 21, 2000 | Feb 28, 2000 | Mar 13, 2000 |
| № 8874 | S08 | E28 | 02 | 0020 | BETA | Feb 20, 2000 | Feb 27, 2000 | Mar 11, 2000 |
| № 8872 | S28 | E17 | 04 | 0020 | BETA | Feb 19, 2000 | Feb 26, 2000 | Mar 11, 2000 |
| № 8871 | S14 | W73 | 02 | 0000 | BETA | Feb 12, 2000 | Feb 19, 2000 | Mar 4, 2000 |
| № 8870 | N19 | E01 | 01 | 0090 | ALPHA | Feb 18, 2000 | Feb 25, 2000 | Mar 10, 2000 |
| № 8869 | S23 | W07 | 13 | 0090 | BETA | Feb 17, 2000 | Feb 24, 2000 | Mar 9, 2000 |
| № 8868 | S24 | W60 | 01 | 0020 | ALPHA | Feb 13, 2000 | Feb 20, 2000 | Mar 5, 2000 |
| № 8867 | S16 | W59 | 10 | 0110 | BETA | Feb 13, 2000 | Feb 20, 2000 | Mar 5, 2000 |
| № 8862 | S06 | W58 | 01 | 0130 | ALPHA | Feb 14, 2000 | Feb 20, 2000 | Mar 5, 2000 |
| № 8858 | N27 | W78 | 02 | 0100 | BETA | Feb 12, 2000 | Feb 19, 2000 | Mar 4, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to February 2000. The gray background is the average SSN index.
