The Moon on this date
Moon on Thursday, May 21, 1981
Waning Gibbous
93.6% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 29°
- Moonset
- SW
60°30°
Horizon
11:12 PM
8:13 AM
29°
Key figures
- Illuminated
- 93.6%
- Age
- 17.5 days
- Distance
- 401,400 km
- Apparent size
- 29.8′
- Constellation
- Sagittarius
- Lunation number
- 722
Events on this date
-
Moon and Neptune close together
They pass 1.9° apart in the sky.
Exact values
For May 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 209.33° |
|---|---|
| Phase angle | 29.38° |
| Illuminated fraction | 93.57% |
| Altitude / azimuth | -41.0° / 276.6° |
| Right ascension / declination | 17h 59m / -20.63° |
| Ecliptic longitude / latitude | 269.83° / 2.81° |
| Libration in longitude / latitude | -4.89° / -3.35° |
| Sub-solar longitude / latitude | -33.65° / -1.43° |
| Position angle of the axis | 359.1° |
| Position angle of the bright limb | 85.9° |
| Apparent magnitude | -11.8 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.