The Moon on this date
Moon on Monday, May 17, 1971
Last Quarter
52.1% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 35°
- Moonset
- W
60°30°
Horizon
2:11 AM
12:53 PM
35°
Key figures
- Illuminated
- 52.1%
- Age
- 22.5 days
- Distance
- 372,600 km
- Apparent size
- 32.1′
- Constellation
- Capricornus
- Lunation number
- 598
Events on this date
-
Saturn behind the Sun
On the far side of the Sun and lost in its glare.
-
Mercury at greatest elongation
26° from the Sun in the morning sky, its best showing before sunrise.
-
Last Quarter
Half of the disc is lit. The Moon rises around midnight and is up through the morning.
Exact values
For May 17, 12:00 PM, midday on this date.
| Elongation from the Sun | 267.70° |
|---|---|
| Phase angle | 87.56° |
| Illuminated fraction | 52.13% |
| Altitude / azimuth | 8.4° / 244.1° |
| Right ascension / declination | 21h 44m / -13.13° |
| Ecliptic longitude / latitude | 323.80° / 0.49° |
| Libration in longitude / latitude | -5.21° / -0.16° |
| Sub-solar longitude / latitude | -91.90° / 1.51° |
| Position angle of the axis | 342.4° |
| Position angle of the bright limb | 70.9° |
| 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.