Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9008 | S31 | E50 | 01 | 0010 | ALPHA | May 23, 2000 | May 30, 2000 | Jun 13, 2000 |
| № 9007 | S42 | E12 | 02 | 0010 | BETA | May 20, 2000 | May 28, 2000 | Jun 12, 2000 |
| № 9006 | N26 | W88 | 03 | 0010 | BETA | May 12, 2000 | May 19, 2000 | Jun 2, 2000 |
| № 9005 | S18 | W46 | 01 | 0000 | ALPHA | May 15, 2000 | May 22, 2000 | Jun 5, 2000 |
| № 9004 | N11 | E34 | 14 | 0100 | BETA | May 22, 2000 | May 28, 2000 | Jun 11, 2000 |
| № 9003 | S17 | W67 | 06 | 0020 | BETA | May 14, 2000 | May 21, 2000 | Jun 3, 2000 |
| № 9002 | N18 | E42 | 29 | 0820 | BETA-GAMMA | May 22, 2000 | May 29, 2000 | Jun 12, 2000 |
| № 9001 | N17 | W57 | 01 | 0000 | ALPHA | May 15, 2000 | May 22, 2000 | Jun 4, 2000 |
| № 8999 | N20 | E17 | 05 | 0010 | BETA | May 20, 2000 | May 27, 2000 | Jun 10, 2000 |
| № 8998 | S13 | E16 | 40 | 0510 | BETA-GAMMA | May 20, 2000 | May 27, 2000 | Jun 10, 2000 |
| № 8997 | S17 | W16 | 02 | 0000 | BETA | May 18, 2000 | May 25, 2000 | Jun 7, 2000 |
| № 8996 | S21 | E03 | 53 | 1280 | BETA-GAMMA | May 19, 2000 | May 26, 2000 | Jun 9, 2000 |
| № 8993 | S23 | W88 | 03 | 0090 | BETA | May 12, 2000 | May 19, 2000 | Jun 2, 2000 |
| № 8992 | N09 | W31 | 01 | 0010 | ALPHA | May 17, 2000 | May 23, 2000 | Jun 6, 2000 |
| № 8991 | N16 | W40 | 02 | 0000 | ALPHA | May 16, 2000 | May 23, 2000 | Jun 5, 2000 |
| № 8990 | N17 | W76 | 05 | 0120 | BETA | May 13, 2000 | May 20, 2000 | Jun 3, 2000 |
| № 8989 | N18 | W93 | 04 | 0200 | BETA | May 12, 2000 | May 19, 2000 | Jun 1, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to May 2000. The gray background is the average SSN index.
