First Quarter Moon
Wednesday, 17 January 1940 · 18:21 local in London
1940-01-17 18:21 UTC · Europe/London
First Quarter Moon occurs at 18:21 local time in London on 17 January. 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
48°
At the exact phase
Illumination
50%
First Quarter
Local date
17 Jan
1940
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
Above the horizon (48°) at the exact moment.
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 18:21 local · NASA LRO surface
Next moonrise
11:23
Next moonset
01:03
Next events
Calendar →Jan 1940
24
Full Moon
Above horizon23:22 local · Wed, Wed 24 Jan · Moon 51°
Jan 1940
31
Last Quarter Moon
Below horizon14:47 local · Wed, Wed 31 Jan · Moon -37°
Feb 1940
8
New Moon
Not visible07:45 local · Thu, Thu 8 Feb · Moon 5°
Feb 1940
16
First Quarter Moon
Above horizon12:56 local · Fri, Fri 16 Feb · Moon 21°