The Moon on this date
Moon on Friday, September 18, 1931
First Quarter
48.1% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 21°
- Moonset
- SW
60°30°
Horizon
3:07 PM
11:48 PM
21°
Key figures
- Illuminated
- 48.1%
- Age
- 6.5 days
- Distance
- 381,600 km
- Apparent size
- 31.3′
- Constellation
- Ophiuchus
- Lunation number
- 108
Events on this date
-
First Quarter
Half of the disc is lit. The Moon is high at sunset and sets around midnight.
Exact values
For Sep 18, 12:00 PM, midday on this date.
| Elongation from the Sun | 87.62° |
|---|---|
| Phase angle | 92.22° |
| Illuminated fraction | 48.06% |
| Altitude / azimuth | -31.1° / 102.9° |
| Right ascension / declination | 17h 26m / -28.37° |
| Ecliptic longitude / latitude | 262.40° / -5.15° |
| Libration in longitude / latitude | 8.28° / 7.04° |
| Sub-solar longitude / latitude | 99.82° / 0.29° |
| Position angle of the axis | 2.8° |
| Position angle of the bright limb | 273.3° |
| Apparent magnitude | -10.0 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.