The Moon on this date
Moon on Friday, December 21, 1917
First Quarter
55.3% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 58°
- Moonset
- W
60°30°
Horizon
12:21 PM
12:34 AM
58°
Key figures
- Illuminated
- 55.3%
- Age
- 7.3 days
- Distance
- 371,300 km
- Apparent size
- 32.2′
- Constellation
- Pisces
- Lunation number
- -62
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 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 95.95° |
|---|---|
| Phase angle | 83.94° |
| Illuminated fraction | 55.28% |
| Altitude / azimuth | -4.3° / 77.6° |
| Right ascension / declination | 0h 11m / 6.92° |
| Ecliptic longitude / latitude | 5.24° / 5.28° |
| Libration in longitude / latitude | 2.63° / -5.90° |
| Sub-solar longitude / latitude | 86.11° / -0.07° |
| Position angle of the axis | 336.4° |
| Position angle of the bright limb | 247.0° |
| Apparent magnitude | -10.4 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.