The Moon on this date
Moon on Friday, December 4, 1981
First Quarter
50.4% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 40°
- Moonset
- –
60°30°
Horizon
1:18 PM
40°
Key figures
- Illuminated
- 50.4%
- Age
- 8.1 days
- Distance
- 383,900 km
- Apparent size
- 31.1′
- Constellation
- Aquarius
- Lunation number
- 729
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 Dec 4, 12:00 PM, midday on this date.
| Elongation from the Sun | 90.31° |
|---|---|
| Phase angle | 89.54° |
| Illuminated fraction | 50.40% |
| Altitude / azimuth | -14.9° / 91.5° |
| Right ascension / declination | 23h 03m / -10.41° |
| Ecliptic longitude / latitude | 342.79° / -3.95° |
| Libration in longitude / latitude | -7.37° / 5.89° |
| Sub-solar longitude / latitude | 81.83° / 1.06° |
| Position angle of the axis | 336.1° |
| Position angle of the bright limb | 247.1° |
| Apparent magnitude | -10.2 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.