First Quarter Moon
Saturday, 21 August 1920 · 11:52 local in London
1920-08-21 10:52 UTC · Europe/London
First Quarter Moon occurs at 11:52 local time in London on 21 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
-23°
At the exact phase
Illumination
50%
First Quarter
Local date
21 Aug
1920
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 11:52 local · NASA LRO surface
Next moonrise
14:31
Next moonset
23:27
Next events
Calendar →Aug 1920
29
Full Moon
Below horizon14:03 local · Sun, Sun 29 Aug · Moon -42°
Sept 1920
5
Last Quarter Moon
Below horizon20:05 local · Sun, Sun 5 Sept · Moon -18°
Sept 1920
12
New Moon
Not visible13:51 local · Sun, Sun 12 Sept · Moon 37°
Sept 1920
20
First Quarter Moon
Below horizon05:55 local · Mon, Mon 20 Sept · Moon -56°