The Moon on this date
Moon on Saturday, September 17, 1921
Full Moon
99.9% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 49°
- Moonset
- W
60°30°
Horizon
7:45 PM
7:30 AM
49°
Key figures
- Illuminated
- 99.9%
- Age
- 15.5 days
- Distance
- 400,300 km
- Apparent size
- 29.8′
- Constellation
- Pisces
- Lunation number
- -16
Events on this date
-
Full Moon
The whole disc is lit. The Moon rises around sunset and stays up all night.
Exact values
For Sep 17, 12:00 PM, midday on this date.
| Elongation from the Sun | 184.03° |
|---|---|
| Phase angle | 4.39° |
| Illuminated fraction | 99.85% |
| Altitude / azimuth | -43.6° / 325.0° |
| Right ascension / declination | 23h 51m / 0.93° |
| Ecliptic longitude / latitude | 358.24° / 1.78° |
| Libration in longitude / latitude | -3.67° / -1.95° |
| Sub-solar longitude / latitude | -7.22° / -0.69° |
| Position angle of the axis | 335.1° |
| Position angle of the bright limb | 45.6° |
| Apparent magnitude | -12.5 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.