First Quarter Moon
Monday, 15 August 1983 · 13:47 local in London
1983-08-15 12:47 UTC · Europe/London
First Quarter Moon occurs at 13:47 local time in London on 15 August. Half of the visible disc is lit, and the terminator cuts across the middle. Long shadows make craters along the dividing line stand out.
Moon altitude
-4°
At the exact phase
Illumination
50%
First Quarter
Local date
15 Aug
1983
Viewing tips
- Look along the terminator for the strongest crater shadows.
- The Moon is highest in the evening during this phase.
- Binoculars are enough to see major craters and maria.
Visibility, honestly
Below the horizon at the exact moment — look near moonrise or moonset.
A phase is a global instant; whether it is above your horizon depends on location. Weather is not included here. Check the tonight outlook for cloud cover and a viewing score. No eclipse or conjunction claim is made on this page.
Phase times from Astronomy Engine. Rise/set and altitude use atmospheric refraction. Method
First Quarter · 50% lit
Phase at 13:47 local · NASA LRO surface
Next moonrise
14:13
Next moonset
23:34
Next events
Calendar →Aug 1983
23
Full Moon
Below horizon15:59 local · Tue, Tue 23 Aug · Moon -41°
Aug 1983
31
Last Quarter Moon
Above horizon12:22 local · Wed, Wed 31 Aug · Moon 19°
Sept 1983
7
New Moon
Not visible03:35 local · Wed, Wed 7 Sept · Moon -20°
Sept 1983
14
First Quarter Moon
Below horizon03:24 local · Wed, Wed 14 Sept · Moon -42°