The Moon on this date
Moon on Monday, December 18, 1939
First Quarter
48.5% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 51°
- Moonset
- –
60°30°
Horizon
12:20 PM
51°
Key figures
- Illuminated
- 48.5%
- Age
- 7.8 days
- Distance
- 403,800 km
- Apparent size
- 29.6′
- Constellation
- Pisces
- Lunation number
- 210
Events on this date
-
Moon and Mars close together
They pass 3.9° apart in the sky.
-
First Quarter
Half of the disc is lit. The Moon is high at sunset and sets around midnight.
-
Moon and Jupiter close together
They pass 3.7° apart in the sky.
Exact values
For Dec 18, 12:00 PM, midday on this date.
| Elongation from the Sun | 88.16° |
|---|---|
| Phase angle | 91.68° |
| Illuminated fraction | 48.54% |
| Altitude / azimuth | -4.0° / 86.6° |
| Right ascension / declination | 23h 34m / 0.22° |
| Ecliptic longitude / latitude | 354.05° / 2.81° |
| Libration in longitude / latitude | -1.35° / -2.85° |
| Sub-solar longitude / latitude | 89.85° / 1.33° |
| Position angle of the axis | 335.3° |
| Position angle of the bright limb | 246.6° |
| Apparent magnitude | -10.0 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.