The Moon on this date
Moon on Thursday, August 17, 1978
Waxing Gibbous
99.0% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 34°
- Moonset
- W
60°30°
Horizon
7:50 PM
5:45 AM
34°
Key figures
- Illuminated
- 99.0%
- Age
- 13.6 days
- Distance
- 359,300 km
- Apparent size
- 33.2′
- Constellation
- Aquarius
- Lunation number
- 688
Events on this date
-
Perigee
The Moon's closest point to Earth on this orbit: 359,200 km.
Exact values
For Aug 17, 12:00 PM, midday on this date.
| Elongation from the Sun | 169.30° |
|---|---|
| Phase angle | 11.25° |
| Illuminated fraction | 99.04% |
| Altitude / azimuth | -61.4° / 334.2° |
| Right ascension / declination | 21h 00m / -13.29° |
| Ecliptic longitude / latitude | 313.69° / 3.58° |
| Libration in longitude / latitude | 1.09° / -4.25° |
| Sub-solar longitude / latitude | 11.99° / -0.84° |
| Position angle of the axis | 342.6° |
| Position angle of the bright limb | 269.7° |
| Apparent magnitude | -12.5 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.