Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8980 | S16 | E58 | 01 | 0010 | ALPHA | May 5, 2000 | May 12, 2000 | May 26, 2000 |
| № 8978 | N19 | W10 | 06 | 0040 | BETA | Apr 30, 2000 | May 7, 2000 | May 21, 2000 |
| № 8977 | S13 | W20 | 05 | 0010 | BETA | Apr 29, 2000 | May 6, 2000 | May 20, 2000 |
| № 8976 | S11 | W14 | 09 | 0060 | BETA | Apr 30, 2000 | May 7, 2000 | May 20, 2000 |
| № 8971 | N18 | W36 | 09 | 0670 | BETA | Apr 28, 2000 | May 5, 2000 | May 19, 2000 |
| № 8970 | S15 | W36 | 29 | 0780 | BETA | Apr 28, 2000 | May 5, 2000 | May 19, 2000 |
| № 8967 | N23 | W77 | 02 | 0060 | ALPHA | Apr 25, 2000 | May 2, 2000 | May 16, 2000 |
| № 8965 | S15 | W89 | 01 | 0000 | ALPHA | Apr 24, 2000 | May 1, 2000 | May 15, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to April 2000. The gray background is the average SSN index.
