The Moon on this date
Moon on Tuesday, October 21, 1947
First Quarter
46.9% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 24°
- Moonset
- SW
60°30°
Horizon
2:00 PM
11:10 PM
24°
Key figures
- Illuminated
- 46.9%
- Age
- 7.5 days
- Distance
- 404,200 km
- Apparent size
- 29.6′
- Constellation
- Sagittarius
- Lunation number
- 307
Events on this date
-
First Quarter
Half of the disc is lit. The Moon is high at sunset and sets around midnight.
-
Apogee
The Moon's farthest point from Earth on this orbit: 404,300 km.
Exact values
For Oct 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 86.29° |
|---|---|
| Phase angle | 93.54° |
| Illuminated fraction | 46.91% |
| Altitude / azimuth | -20.4° / 107.4° |
| Right ascension / declination | 19h 46m / -25.83° |
| Ecliptic longitude / latitude | 293.75° / -4.54° |
| Libration in longitude / latitude | 1.22° / 6.51° |
| Sub-solar longitude / latitude | 94.27° / 0.72° |
| Position angle of the axis | 348.7° |
| Position angle of the bright limb | 259.7° |
| 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.