The Moon on this date
Moon on Wednesday, January 23, 1991
First Quarter
51.3% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- NE
- Highest
- 69°
- Moonset
- W
60°30°
Horizon
11:20 AM
12:54 AM
69°
Key figures
- Illuminated
- 51.3%
- Age
- 7.7 days
- Distance
- 374,300 km
- Apparent size
- 31.9′
- Constellation
- Aries
- Lunation number
- 842
Events on this date
-
First Quarter
Half of the disc is lit. The Moon is high at sunset and sets around midnight.
-
Mercury and Uranus close together
They pass 0.5° apart in the sky.
Exact values
For Jan 23, 12:00 PM, midday on this date.
| Elongation from the Sun | 91.41° |
|---|---|
| Phase angle | 88.45° |
| Illuminated fraction | 51.35% |
| Altitude / azimuth | 6.2° / 72.4° |
| Right ascension / declination | 2h 02m / 18.00° |
| Ecliptic longitude / latitude | 34.60° / 5.26° |
| Libration in longitude / latitude | -5.06° / -5.93° |
| Sub-solar longitude / latitude | 82.88° / 0.11° |
| Position angle of the axis | 339.9° |
| Position angle of the bright limb | 250.2° |
| Apparent magnitude | -10.3 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.