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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 26, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8606 | N17 | E21 | 11 | 0060 | BETA | Jun 29, 1999 | Jul 5, 1999 | Jul 19, 1999 |
| № 8605 | S24 | W48 | 01 | 0000 | ALPHA | Jun 23, 1999 | Jun 30, 1999 | Jul 14, 1999 |
| № 8604 | N12 | W68 | 06 | 0100 | BETA | Jun 22, 1999 | Jun 29, 1999 | Jul 12, 1999 |
| № 8603 | S15 | E54 | 18 | 0320 | BETA | Jul 1, 1999 | Jul 8, 1999 | Jul 22, 1999 |
| № 8602 | N18 | E48 | 16 | 0320 | BETA | Jul 1, 1999 | Jul 8, 1999 | Jul 21, 1999 |
| № 8601 | S15 | W63 | 03 | 0010 | BETA | Jun 22, 1999 | Jun 29, 1999 | Jul 13, 1999 |
| № 8600 | N18 | W64 | 01 | 0000 | ALPHA | Jun 22, 1999 | Jun 29, 1999 | Jul 13, 1999 |
| № 8599 | S16 | E27 | 10 | 0110 | BETA | Jun 29, 1999 | Jul 6, 1999 | Jul 20, 1999 |
| № 8598 | N23 | E13 | 39 | 0650 | BETA | Jun 28, 1999 | Jul 5, 1999 | Jul 19, 1999 |
| № 8596 | N21 | W00 | 04 | 0010 | BETA | Jun 27, 1999 | Jul 4, 1999 | Jul 18, 1999 |
| № 8594 | N14 | E14 | 19 | 0210 | BETA | Jun 28, 1999 | Jul 5, 1999 | Jul 19, 1999 |
| № 8592 | N23 | W08 | 01 | 0060 | ALPHA | Jun 26, 1999 | Jul 3, 1999 | Jul 17, 1999 |
| № 8585 | N35 | W80 | 01 | 0120 | ALPHA | Jun 21, 1999 | Jun 28, 1999 | Jul 12, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to June 1999. The gray background is the average SSN index.
