The Moon on this date
Moon on Tuesday, December 21, 2010
Full Moon
99.8% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- NE
- Highest
- 74°
- Moonset
- NW
60°30°
Horizon
5:42 PM
8:05 AM
74°
Key figures
- Illuminated
- 99.8%
- Age
- 16.0 days
- Distance
- 375,200 km
- Apparent size
- 31.8′
- Constellation
- Gemini
- Lunation number
- 1088
Events on this date
-
Full Moon
The whole disc is lit. The Moon rises around sunset and stays up all night.
-
Total lunar eclipse
The Moon passes fully into Earth's shadow and turns a dim copper red. It starts at 1:32 AM, is deepest at 3:16 AM and ends at 5:01 AM. Totality lasts from 2:40 AM to 3:53 AM. Visible from Columbus from start to finish.
-
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 | 184.66° |
|---|---|
| Phase angle | 4.65° |
| Illuminated fraction | 99.84% |
| Altitude / azimuth | -26.1° / 347.1° |
| Right ascension / declination | 6h 19m / 23.21° |
| Ecliptic longitude / latitude | 94.38° / -0.15° |
| Libration in longitude / latitude | -4.67° / 1.01° |
| Sub-solar longitude / latitude | -9.16° / -0.12° |
| Position angle of the axis | 0.3° |
| Position angle of the bright limb | 104.4° |
| Apparent magnitude | -12.7 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.