No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 6, 1999. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8534 | S18 | E76 | 01 | 0030 | ALPHA | May 13, 1999 | May 20, 1999 | Jun 2, 1999 |
| № 8533 | N05 | E76 | 03 | 0050 | BETA | May 13, 1999 | May 19, 1999 | Jun 2, 1999 |
| № 8532 | S40 | W12 | 02 | 0010 | BETA | May 6, 1999 | May 13, 1999 | May 28, 1999 |
| № 8531 | N18 | E54 | 05 | 0030 | BETA | May 11, 1999 | May 18, 1999 | Jun 1, 1999 |
| № 8530 | N16 | E16 | 02 | 0010 | BETA | May 8, 1999 | May 15, 1999 | May 29, 1999 |
| № 8529 | S14 | W28 | 04 | 0010 | BETA | May 5, 1999 | May 12, 1999 | May 25, 1999 |
| № 8528 | S16 | E16 | 04 | 0020 | BETA | May 8, 1999 | May 15, 1999 | May 29, 1999 |
| № 8527 | N26 | E02 | 01 | 0000 | ALPHA | May 7, 1999 | May 14, 1999 | May 28, 1999 |
| № 8526 | N20 | W42 | 08 | 0050 | BETA | May 4, 1999 | May 11, 1999 | May 24, 1999 |
| № 8525 | N18 | E00 | 15 | 0170 | BETA | May 7, 1999 | May 14, 1999 | May 27, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to May 1999. The gray background is the average SSN index.
