The Moon on this date
Moon on Tuesday, May 23, 1978
Waning Gibbous
98.0% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 32°
- Moonset
- SW
60°30°
Horizon
10:06 PM
7:21 AM
32°
Key figures
- Illuminated
- 98.0%
- Age
- 16.5 days
- Distance
- 361,200 km
- Apparent size
- 33.1′
- Constellation
- Ophiuchus
- Lunation number
- 685
Events on this date
-
Moon and Neptune close together
They pass 3.4° apart in the sky.
Exact values
For May 23, 12:00 PM, midday on this date.
| Elongation from the Sun | 195.53° |
|---|---|
| Phase angle | 16.22° |
| Illuminated fraction | 98.01% |
| Altitude / azimuth | -50.1° / 291.5° |
| Right ascension / declination | 17h 08m / -18.02° |
| Ecliptic longitude / latitude | 257.69° / 4.87° |
| Libration in longitude / latitude | -2.04° / -5.86° |
| Sub-solar longitude / latitude | -17.06° / -1.30° |
| Position angle of the axis | 5.7° |
| Position angle of the bright limb | 79.4° |
| Apparent magnitude | -12.4 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.