First Quarter Moon
Tuesday, 20 September 1977 · 07:18 local in London
1977-09-20 06:18 UTC · Europe/London
First Quarter Moon occurs at 07:18 local time in London on 20 September. 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
-57°
At the exact phase
Illumination
50%
First Quarter
Local date
20 Sep
1977
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 07:18 local · NASA LRO surface
Next moonrise
14:49
Next moonset
23:52
Next events
Calendar →Sept 1977
27
Full Moon
Below horizon09:18 local · Tue, Tue 27 Sept · Moon -20°
Oct 1977
5
Last Quarter Moon
Above horizon10:21 local · Wed, Wed 5 Oct · Moon 37°
Oct 1977
12
New Moon
Not visible21:31 local · Wed, Wed 12 Oct · Moon -31°
Oct 1977
19
First Quarter Moon
Below horizon13:46 local · Wed, Wed 19 Oct · Moon -5°