Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8872 | S27 | E65 | 04 | 0090 | BETA | Feb 19, 2000 | Feb 26, 2000 | Mar 11, 2000 |
| № 8871 | S14 | W24 | 05 | 0030 | BETA | Feb 12, 2000 | Feb 19, 2000 | Mar 4, 2000 |
| № 8870 | N20 | E51 | 01 | 0060 | ALPHA | Feb 18, 2000 | Feb 25, 2000 | Mar 10, 2000 |
| № 8869 | S24 | E48 | 05 | 0050 | BETA | Feb 18, 2000 | Feb 25, 2000 | Mar 10, 2000 |
| № 8868 | S24 | W07 | 09 | 0070 | BETA | Feb 13, 2000 | Feb 20, 2000 | Mar 5, 2000 |
| № 8867 | S16 | W07 | 09 | 0020 | BETA | Feb 13, 2000 | Feb 20, 2000 | Mar 5, 2000 |
| № 8864 | N44 | W67 | 01 | 0000 | ALPHA | Feb 8, 2000 | Feb 16, 2000 | Mar 2, 2000 |
| № 8862 | S06 | W06 | 01 | 0140 | ALPHA | Feb 14, 2000 | Feb 20, 2000 | Mar 5, 2000 |
| № 8858 | N25 | W38 | 07 | 0040 | BETA | Feb 11, 2000 | Feb 18, 2000 | Mar 3, 2000 |
| № 8856 | S14 | W48 | 04 | 0040 | BETA | Feb 10, 2000 | Feb 17, 2000 | Mar 2, 2000 |
| № 8855 | N18 | W87 | 01 | 0000 | ALPHA | Feb 7, 2000 | Feb 14, 2000 | Feb 28, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to February 2000. The gray background is the average SSN index.
