Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8921 | S15 | E73 | 02 | 0030 | BETA | Mar 27, 2000 | Apr 3, 2000 | Apr 17, 2000 |
| № 8920 | N24 | E57 | 01 | 0010 | ALPHA | Mar 26, 2000 | Apr 2, 2000 | Apr 16, 2000 |
| № 8918 | N32 | W25 | 12 | 0060 | BETA | Mar 20, 2000 | Mar 27, 2000 | Apr 10, 2000 |
| № 8917 | N19 | W06 | 14 | 0160 | BETA | Mar 21, 2000 | Mar 28, 2000 | Apr 11, 2000 |
| № 8916 | N13 | E42 | 16 | 0250 | BETA | Mar 25, 2000 | Apr 1, 2000 | Apr 14, 2000 |
| № 8915 | N23 | E26 | 02 | 0200 | ALPHA | Mar 24, 2000 | Mar 31, 2000 | Apr 14, 2000 |
| № 8913 | S16 | W09 | 33 | 0210 | BETA | Mar 21, 2000 | Mar 28, 2000 | Apr 11, 2000 |
| № 8910 | N13 | W33 | 55 | 0680 | BETA-GAMMA-DELTA | Mar 19, 2000 | Mar 26, 2000 | Apr 9, 2000 |
| № 8909 | S28 | W39 | 01 | 0000 | ALPHA | Mar 19, 2000 | Mar 26, 2000 | Apr 9, 2000 |
| № 8906 | S16 | W86 | 04 | 0230 | BETA | Mar 15, 2000 | Mar 22, 2000 | Apr 5, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to March 2000. The gray background is the average SSN index.
