The Moon on this date
Moon on Monday, September 21, 1981
Waning Crescent
40.7% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- NE
- Highest
- 71°
- Moonset
- NW
60°30°
Horizon
12:29 AM
3:34 PM
71°
Key figures
- Illuminated
- 40.7%
- Age
- 23.1 days
- Distance
- 374,000 km
- Apparent size
- 31.9′
- Constellation
- Gemini
- Lunation number
- 726
Events on this date
No Moon or planet events on this date.
Exact values
For Sep 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 280.88° |
|---|---|
| Phase angle | 100.74° |
| Illuminated fraction | 40.68% |
| Altitude / azimuth | 37.5° / 266.7° |
| Right ascension / declination | 6h 41m / 21.31° |
| Ecliptic longitude / latitude | 99.46° / -1.80° |
| Libration in longitude / latitude | 4.04° / 2.77° |
| Sub-solar longitude / latitude | -96.17° / 1.33° |
| Position angle of the axis | 5.2° |
| Position angle of the bright limb | 93.3° |
| Apparent magnitude | -9.7 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.