The Moon on this date
Moon on Friday, July 17, 1981
Full Moon
99.8% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 29°
- Moonset
- SW
60°30°
Horizon
9:29 PM
6:37 AM
29°
Key figures
- Illuminated
- 99.8%
- Age
- 15.9 days
- Distance
- 390,800 km
- Apparent size
- 30.6′
- Constellation
- Capricornus
- Lunation number
- 724
Events on this date
-
Full Moon
The whole disc is lit. The Moon rises around sunset and stays up all night.
-
Partial lunar eclipse
Part of the Moon passes through Earth's dark inner shadow. It starts at 11:24 PM, is deepest at 12:46 AM and ends at 2:08 AM. Visible from Columbus from start to finish.
Exact values
For Jul 17, 12:00 PM, midday on this date.
| Elongation from the Sun | 185.55° |
|---|---|
| Phase angle | 5.53° |
| Illuminated fraction | 99.77% |
| Altitude / azimuth | -57.5° / 298.7° |
| Right ascension / declination | 20h 11m / -19.94° |
| Ecliptic longitude / latitude | 300.52° / 0.11° |
| Libration in longitude / latitude | -5.17° / 0.07° |
| Sub-solar longitude / latitude | -10.28° / -0.22° |
| Position angle of the axis | 346.2° |
| Position angle of the bright limb | 79.5° |
| 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.