Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8974 | S21 | W50 | 01 | 0000 | ALPHA | Apr 22, 2000 | Apr 29, 2000 | May 13, 2000 |
| № 8973 | N21 | W39 | 10 | 0110 | BETA | Apr 23, 2000 | Apr 30, 2000 | May 14, 2000 |
| № 8972 | N34 | W34 | 16 | 0220 | BETA | Apr 23, 2000 | Apr 30, 2000 | May 15, 2000 |
| № 8971 | N18 | E28 | 15 | 0910 | BETA | Apr 28, 2000 | May 5, 2000 | May 19, 2000 |
| № 8970 | S15 | E30 | 27 | 1060 | BETA-GAMMA | Apr 28, 2000 | May 5, 2000 | May 19, 2000 |
| № 8969 | N12 | E07 | 01 | 0020 | ALPHA | Apr 27, 2000 | May 3, 2000 | May 17, 2000 |
| № 8968 | S13 | W39 | 09 | 0130 | BETA | Apr 23, 2000 | Apr 30, 2000 | May 13, 2000 |
| № 8967 | N22 | W04 | 11 | 0180 | BETA | Apr 26, 2000 | May 3, 2000 | May 16, 2000 |
| № 8966 | S12 | W15 | 03 | 0000 | BETA | Apr 25, 2000 | May 2, 2000 | May 15, 2000 |
| № 8965 | S16 | W27 | 06 | 0040 | BETA | Apr 24, 2000 | May 1, 2000 | May 14, 2000 |
| № 8963 | N17 | W70 | 02 | 0000 | BETA | Apr 21, 2000 | Apr 28, 2000 | May 11, 2000 |
| № 8962 | N24 | W65 | 01 | 0010 | ALPHA | Apr 21, 2000 | Apr 28, 2000 | May 12, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to April 2000. The gray background is the average SSN index.
