The Moon on this date
Moon on Wednesday, September 21, 1977
Waxing Gibbous
65.9% illuminated · waxing
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 33°
- Moonset
- SW
60°30°
Horizon
3:49 PM
1:13 AM
33°
Key figures
- Illuminated
- 65.9%
- Age
- 8.3 days
- Distance
- 372,000 km
- Apparent size
- 32.1′
- Constellation
- Sagittarius
- Lunation number
- 677
Events on this date
-
Mercury at greatest elongation
18° from the Sun in the morning sky, its best showing before sunrise.
Exact values
For Sep 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 108.48° |
|---|---|
| Phase angle | 71.47° |
| Illuminated fraction | 65.89% |
| Altitude / azimuth | -42.0° / 76.7° |
| Right ascension / declination | 19h 11m / -17.13° |
| Ecliptic longitude / latitude | 287.04° / 5.26° |
| Libration in longitude / latitude | 3.40° / -6.25° |
| Sub-solar longitude / latitude | 74.27° / -0.46° |
| Position angle of the axis | 352.7° |
| Position angle of the bright limb | 264.4° |
| Apparent magnitude | -10.8 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.