Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8910 | N11 | E70 | 04 | 0140 | BETA | Mar 19, 2000 | Mar 26, 2000 | Apr 9, 2000 |
| № 8909 | S29 | E66 | 02 | 0040 | ALPHA | Mar 19, 2000 | Mar 26, 2000 | Apr 9, 2000 |
| № 8908 | S20 | E35 | 04 | 0020 | BETA | Mar 17, 2000 | Mar 23, 2000 | Apr 6, 2000 |
| № 8907 | S17 | W33 | 01 | 0010 | ALPHA | Mar 11, 2000 | Mar 18, 2000 | Apr 1, 2000 |
| № 8906 | S15 | E20 | 41 | 0850 | BETA-DELTA | Mar 15, 2000 | Mar 22, 2000 | Apr 5, 2000 |
| № 8904 | N23 | W57 | 12 | 0170 | BETA | Mar 9, 2000 | Mar 16, 2000 | Mar 30, 2000 |
| № 8903 | S12 | W44 | 08 | 0040 | BETA | Mar 11, 2000 | Mar 17, 2000 | Mar 31, 2000 |
| № 8902 | S17 | W01 | 01 | 0010 | ALPHA | Mar 14, 2000 | Mar 21, 2000 | Apr 3, 2000 |
| № 8901 | S12 | W20 | 04 | 0010 | BETA | Mar 12, 2000 | Mar 19, 2000 | Apr 2, 2000 |
| № 8898 | S13 | W57 | 11 | 0310 | BETA | Mar 10, 2000 | Mar 16, 2000 | Mar 30, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to March 2000. The gray background is the average SSN index.
