The Moon on this date
Moon on Saturday, July 31, 1999
Waning Gibbous
89.3% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 40°
- Moonset
- W
60°30°
Horizon
10:53 PM
9:36 AM
40°
Key figures
- Illuminated
- 89.3%
- Age
- 18.6 days
- Distance
- 382,700 km
- Apparent size
- 31.2′
- Constellation
- Aquarius
- Lunation number
- 947
Events on this date
No Moon or planet events on this date.
Exact values
For Jul 31, 12:00 PM, midday on this date.
| Elongation from the Sun | 218.16° |
|---|---|
| Phase angle | 38.16° |
| Illuminated fraction | 89.31% |
| Altitude / azimuth | -26.5° / 281.9° |
| Right ascension / declination | 23h 14m / -8.13° |
| Ecliptic longitude / latitude | 346.17° / -2.90° |
| Libration in longitude / latitude | -6.08° / 3.95° |
| Sub-solar longitude / latitude | -43.26° / -0.15° |
| Position angle of the axis | 335.8° |
| Position angle of the bright limb | 71.2° |
| Apparent magnitude | -11.7 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.