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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8599 | S16 | E78 | 02 | 0060 | ALPHA | Jun 29, 1999 | Jul 6, 1999 | Jul 19, 1999 |
| № 8598 | N26 | E71 | 02 | 0110 | ALPHA | Jun 28, 1999 | Jul 5, 1999 | Jul 19, 1999 |
| № 8597 | N21 | E67 | 02 | 0140 | BETA | Jun 28, 1999 | Jul 5, 1999 | Jul 19, 1999 |
| № 8596 | N23 | E55 | 03 | 0040 | BETA | Jun 27, 1999 | Jul 4, 1999 | Jul 18, 1999 |
| № 8595 | N26 | E20 | 04 | 0010 | BETA | Jun 24, 1999 | Jul 1, 1999 | Jul 15, 1999 |
| № 8594 | N14 | E69 | 07 | 0260 | BETA | Jun 28, 1999 | Jul 5, 1999 | Jul 19, 1999 |
| № 8593 | N20 | W74 | 01 | 0000 | ALPHA | Jun 17, 1999 | Jun 24, 1999 | Jul 8, 1999 |
| № 8592 | N22 | E47 | 08 | 0170 | BETA | Jun 26, 1999 | Jul 3, 1999 | Jul 17, 1999 |
| № 8589 | N28 | W62 | 03 | 0070 | BETA | Jun 18, 1999 | Jun 25, 1999 | Jul 9, 1999 |
| № 8585 | N38 | W29 | 05 | 0150 | BETA | Jun 20, 1999 | Jun 28, 1999 | Jul 12, 1999 |
| № 8580 | S21 | W92 | 01 | 0040 | ALPHA | Jun 16, 1999 | Jun 23, 1999 | Jul 6, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to June 1999. The gray background is the average SSN index.
