The Moon on this date
Moon on Sunday, September 18, 1988
First Quarter
45.1% 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
2:51 PM
11:33 PM
21°
Key figures
- Illuminated
- 45.1%
- Age
- 7.5 days
- Distance
- 384,400 km
- Apparent size
- 31.1′
- Constellation
- Ophiuchus
- Lunation number
- 813
Events on this date
-
Moon, Saturn, and Uranus gathered
All within 6.1° of each other in the sky.
-
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 | 84.22° |
|---|---|
| Phase angle | 95.61° |
| Illuminated fraction | 45.11% |
| Altitude / azimuth | -28.4° / 104.8° |
| Right ascension / declination | 17h 15m / -28.32° |
| Ecliptic longitude / latitude | 260.18° / -5.25° |
| Libration in longitude / latitude | -6.46° / 7.18° |
| Sub-solar longitude / latitude | 88.40° / -0.30° |
| Position angle of the axis | 4.3° |
| Position angle of the bright limb | 274.6° |
| Apparent magnitude | -9.9 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.