The Moon on this date
Moon on Saturday, May 21, 2011
Waning Gibbous
79.4% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- SE
- Highest
- 30°
- Moonset
- SW
60°30°
Horizon
12:06 AM
10:08 AM
30°
Key figures
- Illuminated
- 79.4%
- Age
- 18.4 days
- Distance
- 386,100 km
- Apparent size
- 30.9′
- Constellation
- Sagittarius
- Lunation number
- 1093
Events on this date
-
Mars, Mercury, and Venus gathered
All within 2.1° of each other in the sky.
Exact values
For May 21, 12:00 PM, midday on this date.
| Elongation from the Sun | 234.07° |
|---|---|
| Phase angle | 54.00° |
| Illuminated fraction | 79.39% |
| Altitude / azimuth | -19.9° / 261.7° |
| Right ascension / declination | 19h 43m / -18.60° |
| Ecliptic longitude / latitude | 294.34° / 2.69° |
| Libration in longitude / latitude | 5.48° / -3.06° |
| Sub-solar longitude / latitude | -47.61° / 0.60° |
| Position angle of the axis | 351.7° |
| Position angle of the bright limb | 78.6° |
| Apparent magnitude | -11.2 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.