The Moon on this date
Moon on Wednesday, December 21, 1977
Waxing Gibbous
87.4% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 65°
- Moonset
- W
60°30°
Horizon
2:52 PM
4:09 AM
65°
Key figures
- Illuminated
- 87.4%
- Age
- 11.0 days
- Distance
- 402,900 km
- Apparent size
- 29.6′
- Constellation
- Aries
- Lunation number
- 680
Events on this date
-
Mercury at inferior conjunction
Passes between Earth and the Sun and is lost in its glare.
-
December solstice
The shortest day in the northern hemisphere and the longest in the southern.
Exact values
For Dec 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 138.41° |
|---|---|
| Phase angle | 41.57° |
| Illuminated fraction | 87.41% |
| Altitude / azimuth | -26.7° / 39.0° |
| Right ascension / declination | 3h 06m / 14.39° |
| Ecliptic longitude / latitude | 48.14° / -2.96° |
| Libration in longitude / latitude | 4.47° / 4.71° |
| Sub-solar longitude / latitude | 45.84° / 1.54° |
| Position angle of the axis | 343.0° |
| Position angle of the bright limb | 250.0° |
| Apparent magnitude | -11.6 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.