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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 25, 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 | E35 | 07 | 0060 | BETA | Jun 29, 1999 | Jul 5, 1999 | Jul 19, 1999 |
| № 8605 | S25 | W30 | 04 | 0020 | BETA | Jun 24, 1999 | Jun 30, 1999 | Jul 14, 1999 |
| № 8604 | N12 | W52 | 04 | 0030 | BETA | Jun 22, 1999 | Jun 29, 1999 | Jul 12, 1999 |
| № 8603 | S15 | E63 | 09 | 0160 | BETA | Jul 1, 1999 | Jul 7, 1999 | Jul 21, 1999 |
| № 8602 | N19 | E59 | 09 | 0350 | BETA | Jun 30, 1999 | Jul 7, 1999 | Jul 21, 1999 |
| № 8601 | S14 | W49 | 03 | 0010 | ALPHA | Jun 22, 1999 | Jun 29, 1999 | Jul 13, 1999 |
| № 8600 | N19 | W47 | 06 | 0020 | BETA | Jun 22, 1999 | Jun 29, 1999 | Jul 13, 1999 |
| № 8599 | S17 | E41 | 08 | 0120 | BETA | Jun 29, 1999 | Jul 6, 1999 | Jul 20, 1999 |
| № 8598 | N23 | E30 | 29 | 0360 | BETA | Jun 28, 1999 | Jul 5, 1999 | Jul 19, 1999 |
| № 8596 | N21 | E15 | 01 | 0020 | ALPHA | Jun 27, 1999 | Jul 4, 1999 | Jul 18, 1999 |
| № 8594 | N14 | E28 | 13 | 0200 | BETA | Jun 28, 1999 | Jul 5, 1999 | Jul 18, 1999 |
| № 8592 | N22 | E06 | 03 | 0060 | BETA | Jun 26, 1999 | Jul 3, 1999 | Jul 17, 1999 |
| № 8585 | N36 | W66 | 03 | 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.
