The Moon on this date
Moon on Monday, May 31, 1999
Waning Gibbous
98.1% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 30°
- Moonset
- SW
60°30°
Horizon
10:06 PM
7:18 AM
30°
Key figures
- Illuminated
- 98.1%
- Age
- 16.2 days
- Distance
- 404,600 km
- Apparent size
- 29.5′
- Constellation
- Ophiuchus
- Lunation number
- 945
Events on this date
No Moon or planet events on this date.
Exact values
For May 31, 12:00 PM, midday on this date.
| Elongation from the Sun | 195.20° |
|---|---|
| Phase angle | 15.63° |
| Illuminated fraction | 98.15% |
| Altitude / azimuth | -51.2° / 290.0° |
| Right ascension / declination | 17h 39m / -19.47° |
| Ecliptic longitude / latitude | 264.97° / 3.87° |
| Libration in longitude / latitude | -2.99° / -4.74° |
| Sub-solar longitude / latitude | -17.80° / -1.46° |
| Position angle of the axis | 1.3° |
| Position angle of the bright limb | 79.3° |
| Apparent magnitude | -12.2 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.