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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 14, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8634 | S18 | E61 | 01 | 0010 | ALPHA | Jul 19, 1999 | Jul 26, 1999 | Aug 9, 1999 |
| № 8633 | N41 | E10 | 01 | 0000 | ALPHA | Jul 16, 1999 | Jul 23, 1999 | Aug 7, 1999 |
| № 8632 | S20 | W82 | 03 | 0030 | BETA | Jul 9, 1999 | Jul 15, 1999 | Jul 29, 1999 |
| № 8631 | N11 | E52 | 01 | 0160 | ALPHA | Jul 19, 1999 | Jul 26, 1999 | Aug 8, 1999 |
| № 8628 | N17 | W07 | 22 | 0220 | BETA | Jul 14, 1999 | Jul 21, 1999 | Aug 4, 1999 |
| № 8627 | S14 | E08 | 18 | 0250 | BETA | Jul 15, 1999 | Jul 22, 1999 | Aug 5, 1999 |
| № 8626 | S20 | W86 | 03 | 0020 | BETA | Jul 8, 1999 | Jul 15, 1999 | Jul 29, 1999 |
| № 8625 | S19 | W12 | 06 | 0030 | BETA | Jul 14, 1999 | Jul 21, 1999 | Aug 4, 1999 |
| № 8624 | N22 | W68 | 04 | 0030 | BETA | Jul 10, 1999 | Jul 17, 1999 | Jul 30, 1999 |
| № 8620 | N22 | W73 | 05 | 0040 | BETA | Jul 9, 1999 | Jul 16, 1999 | Jul 30, 1999 |
| № 8615 | S29 | W81 | 03 | 0120 | BETA | Jul 8, 1999 | Jul 16, 1999 | Jul 30, 1999 |
| № 8614 | N17 | W91 | 01 | 0030 | ALPHA | Jul 8, 1999 | Jul 15, 1999 | Jul 28, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to July 1999. The gray background is the average SSN index.
