The Moon on this date
Moon on Thursday, October 4, 1917
Waning Gibbous
81.0% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- NE
- Highest
- 72°
- Moonset
- NW
60°30°
Horizon
8:34 PM
11:02 AM
72°
Key figures
- Illuminated
- 81.0%
- Age
- 18.3 days
- Distance
- 378,000 km
- Apparent size
- 31.6′
- Constellation
- Taurus
- Lunation number
- -65
Events on this date
-
Mercury at greatest elongation
18° from the Sun in the morning sky, its best showing before sunrise.
Exact values
For Oct 4, 12:00 PM, midday on this date.
| Elongation from the Sun | 231.81° |
|---|---|
| Phase angle | 51.75° |
| Illuminated fraction | 80.95% |
| Altitude / azimuth | -8.8° / 310.3° |
| Right ascension / declination | 4h 00m / 23.38° |
| Ecliptic longitude / latitude | 62.71° / 2.73° |
| Libration in longitude / latitude | 6.76° / -2.96° |
| Sub-solar longitude / latitude | -44.26° / -1.53° |
| Position angle of the axis | 347.0° |
| Position angle of the bright limb | 76.6° |
| Apparent magnitude | -11.4 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.