The Moon on this date
Moon on Tuesday, September 17, 1991
Waxing Gibbous
66.4% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 27°
- Moonset
- SW
60°30°
Horizon
4:16 PM
12:55 AM
27°
Key figures
- Illuminated
- 66.4%
- Age
- 9.2 days
- Distance
- 404,300 km
- Apparent size
- 29.5′
- Constellation
- Sagittarius
- Lunation number
- 850
Events on this date
-
Moon and Uranus close together
They pass 0.2° apart in the sky.
-
Apogee
The Moon's farthest point from Earth on this orbit: 404,300 km.
-
Moon and Neptune close together
They pass 1.0° apart in the sky.
-
Moon, Neptune, and Uranus gathered
All within 4.3° of each other in the sky.
Exact values
For Sep 17, 12:00 PM, midday on this date.
| Elongation from the Sun | 108.98° |
|---|---|
| Phase angle | 70.88° |
| Illuminated fraction | 66.38% |
| Altitude / azimuth | -46.2° / 82.6° |
| Right ascension / declination | 18h 58m / -23.08° |
| Ecliptic longitude / latitude | 283.25° / -0.30° |
| Libration in longitude / latitude | 1.37° / 0.74° |
| Sub-solar longitude / latitude | 71.74° / -1.45° |
| Position angle of the axis | 355.7° |
| Position angle of the bright limb | 263.8° |
| Apparent magnitude | -10.7 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.