Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 27, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8973 | N22 | W63 | 05 | 0080 | BETA | Apr 23, 2000 | Apr 30, 2000 | May 14, 2000 |
| № 8972 | N34 | W59 | 05 | 0230 | BETA | Apr 23, 2000 | Apr 30, 2000 | May 15, 2000 |
| № 8971 | N18 | E03 | 22 | 0850 | BETA | Apr 28, 2000 | May 5, 2000 | May 19, 2000 |
| № 8970 | S15 | E05 | 42 | 1090 | BETA-GAMMA | Apr 28, 2000 | May 5, 2000 | May 19, 2000 |
| № 8969 | N11 | W19 | 03 | 0010 | ALPHA | Apr 26, 2000 | May 3, 2000 | May 17, 2000 |
| № 8968 | S13 | W65 | 05 | 0060 | BETA | Apr 23, 2000 | Apr 30, 2000 | May 13, 2000 |
| № 8967 | N23 | W29 | 15 | 0160 | BETA | Apr 26, 2000 | May 3, 2000 | May 16, 2000 |
| № 8966 | S13 | W38 | 07 | 0020 | BETA | Apr 25, 2000 | May 2, 2000 | May 15, 2000 |
| № 8965 | S16 | W51 | 03 | 0030 | BETA | 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.
