The Moon on this date
Moon on Wednesday, August 18, 1999
First Quarter
46.2% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 35°
- Moonset
- W
60°30°
Horizon
1:53 PM
12:04 AM
35°
Key figures
- Illuminated
- 46.2%
- Age
- 7.2 days
- Distance
- 403,200 km
- Apparent size
- 29.6′
- Constellation
- Libra
- Lunation number
- 948
Events on this date
-
First Quarter
Half of the disc is lit. The Moon is high at sunset and sets around midnight.
Exact values
For Aug 18, 12:00 PM, midday on this date.
| Elongation from the Sun | 85.52° |
|---|---|
| Phase angle | 94.30° |
| Illuminated fraction | 46.25% |
| Altitude / azimuth | -21.0° / 89.8° |
| Right ascension / declination | 15h 19m / -12.91° |
| Ecliptic longitude / latitude | 230.80° / 5.22° |
| Libration in longitude / latitude | 3.09° / -6.45° |
| Sub-solar longitude / latitude | 96.60° / 0.35° |
| Position angle of the axis | 14.5° |
| Position angle of the bright limb | 284.4° |
| Apparent magnitude | -9.8 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.