The Moon on this date
Moon on Monday, August 21, 1939
First Quarter
47.8% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 32°
- Moonset
- –
60°30°
Horizon
2:14 PM
32°
Key figures
- Illuminated
- 47.8%
- Age
- 6.5 days
- Distance
- 384,400 km
- Apparent size
- 31.1′
- Constellation
- Libra
- Lunation number
- 206
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 Aug 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 87.31° |
|---|---|
| Phase angle | 92.54° |
| Illuminated fraction | 47.78% |
| Altitude / azimuth | -24.2° / 92.8° |
| Right ascension / declination | 15h 33m / -17.06° |
| Ecliptic longitude / latitude | 235.01° / 2.03° |
| Libration in longitude / latitude | 8.45° / -2.33° |
| Sub-solar longitude / latitude | 100.24° / -1.38° |
| Position angle of the axis | 15.0° |
| Position angle of the bright limb | 283.5° |
| Apparent magnitude | -10.0 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.