The Moon on this date
Moon on Friday, September 17, 1999
First Quarter
48.5% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 30°
- Moonset
- –
60°30°
Horizon
2:29 PM
30°
Key figures
- Illuminated
- 48.5%
- Age
- 7.7 days
- Distance
- 403,900 km
- Apparent size
- 29.6′
- Constellation
- Ophiuchus
- Lunation number
- 949
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 17, 12:00 PM, midday on this date.
| Elongation from the Sun | 88.14° |
|---|---|
| Phase angle | 91.71° |
| Illuminated fraction | 48.51% |
| Altitude / azimuth | -26.9° / 93.6° |
| Right ascension / declination | 17h 28m / -19.29° |
| Ecliptic longitude / latitude | 262.46° / 3.94° |
| Libration in longitude / latitude | -0.59° / -4.68° |
| Sub-solar longitude / latitude | 90.35° / 1.06° |
| Position angle of the axis | 1.8° |
| Position angle of the bright limb | 272.8° |
| 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.