The Moon on this date
Moon on Monday, January 17, 1921
First Quarter
54.7% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 63°
- Moonset
- W
60°30°
Horizon
12:05 PM
1:00 AM
63°
Key figures
- Illuminated
- 54.7%
- Age
- 8.5 days
- Distance
- 381,400 km
- Apparent size
- 31.3′
- Constellation
- Aries
- Lunation number
- -24
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 Jan 17, 12:00 PM, midday on this date.
| Elongation from the Sun | 95.30° |
|---|---|
| Phase angle | 84.55° |
| Illuminated fraction | 54.75% |
| Altitude / azimuth | -1.1° / 73.2° |
| Right ascension / declination | 2h 01m / 12.30° |
| Ecliptic longitude / latitude | 32.38° / -0.01° |
| Libration in longitude / latitude | -7.33° / 0.83° |
| Sub-solar longitude / latitude | 76.77° / 1.52° |
| Position angle of the axis | 338.5° |
| Position angle of the bright limb | 250.0° |
| 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.