The Moon on this date
Moon on Saturday, January 21, 1984
Waning Gibbous
86.0% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 62°
- Moonset
- W
60°30°
Horizon
9:34 PM
10:15 AM
62°
Key figures
- Illuminated
- 86.0%
- Age
- 18.5 days
- Distance
- 362,300 km
- Apparent size
- 33.0′
- Constellation
- Leo
- Lunation number
- 755
Events on this date
-
Mercury at greatest elongation
24° from the Sun in the morning sky, its best showing before sunrise.
Exact values
For Jan 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 223.76° |
|---|---|
| Phase angle | 43.90° |
| Illuminated fraction | 86.03% |
| Altitude / azimuth | -18.2° / 301.7° |
| Right ascension / declination | 11h 11m / 10.79° |
| Ecliptic longitude / latitude | 164.61° / 5.13° |
| Libration in longitude / latitude | 2.56° / -5.74° |
| Sub-solar longitude / latitude | -40.81° / -1.13° |
| Position angle of the axis | 22.9° |
| Position angle of the bright limb | 108.4° |
| Apparent magnitude | -11.7 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.