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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8574 | N30 | E42 | 03 | 0010 | BETA | Jun 10, 1999 | Jun 17, 1999 | Jul 1, 1999 |
| № 8573 | N18 | W43 | 01 | 0000 | ALPHA | Jun 4, 1999 | Jun 10, 1999 | Jun 24, 1999 |
| № 8572 | N26 | W56 | 02 | 0010 | BETA | Jun 2, 1999 | Jun 9, 1999 | Jun 23, 1999 |
| № 8571 | S19 | E62 | 03 | 0030 | ALPHA | Jun 12, 1999 | Jun 18, 1999 | Jul 2, 1999 |
| № 8570 | S14 | E62 | 01 | 0050 | ALPHA | Jun 12, 1999 | Jun 18, 1999 | Jul 2, 1999 |
| № 8569 | N21 | E61 | 05 | 0100 | BETA | Jun 12, 1999 | Jun 18, 1999 | Jul 2, 1999 |
| № 8568 | N11 | W67 | 03 | 0020 | BETA | Jun 2, 1999 | Jun 9, 1999 | Jun 22, 1999 |
| № 8567 | S14 | W30 | 08 | 0020 | BETA | Jun 5, 1999 | Jun 11, 1999 | Jun 25, 1999 |
| № 8566 | N22 | E39 | 01 | 0000 | ALPHA | Jun 10, 1999 | Jun 17, 1999 | Jul 1, 1999 |
| № 8564 | S15 | E15 | 01 | 0020 | ALPHA | Jun 8, 1999 | Jun 15, 1999 | Jun 28, 1999 |
| № 8563 | S24 | W02 | 04 | 0000 | BETA | Jun 7, 1999 | Jun 14, 1999 | Jun 28, 1999 |
| № 8562 | S15 | W43 | 26 | 0410 | BETA | Jun 4, 1999 | Jun 10, 1999 | Jun 24, 1999 |
| № 8559 | N21 | W88 | 01 | 0100 | ALPHA | May 31, 1999 | Jun 7, 1999 | Jun 21, 1999 |
| № 8558 | N16 | W33 | 23 | 0330 | BETA | Jun 4, 1999 | Jun 11, 1999 | Jun 25, 1999 |
| № 8555 | N16 | W55 | 01 | 0010 | ALPHA | Jun 3, 1999 | Jun 10, 1999 | Jun 23, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to June 1999. The gray background is the average SSN index.
