The Moon on this date
Moon on Saturday, August 21, 2117
Waning Crescent
39.4% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- NE
- Highest
- 76°
- Moonset
- NW
60°30°
Horizon
12:09 AM
3:56 PM
76°
Key figures
- Illuminated
- 39.4%
- Age
- 23.3 days
- Distance
- 392,300 km
- Apparent size
- 30.4′
- Constellation
- Taurus
- Lunation number
- 2407
Events on this date
-
Mercury at greatest elongation
19° from the Sun in the morning sky, its best showing before sunrise.
Exact values
For Aug 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 282.47° |
|---|---|
| Phase angle | 102.28° |
| Illuminated fraction | 39.36% |
| Altitude / azimuth | 39.8° / 273.1° |
| Right ascension / declination | 4h 35m / 26.65° |
| Ecliptic longitude / latitude | 71.10° / 4.60° |
| Libration in longitude / latitude | -7.21° / -5.68° |
| Sub-solar longitude / latitude | -108.81° / 1.02° |
| Position angle of the axis | 352.2° |
| Position angle of the bright limb | 82.4° |
| Apparent magnitude | -9.6 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.