First Quarter Moon
Sunday, 21 December 2031 · 00:01 local in London
2031-12-21 00:01 UTC · Europe/London
First Quarter Moon occurs at 00:01 local time in London on 21 December. 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
1°
At the exact phase
Illumination
50%
First Quarter
Local date
21 Dec
2031
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 (1°) 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 00:01 local · orientation schematic
Next moonrise
11:49
Next moonset
00:08
Next events
Calendar →Dec 2031
28
Full Moon
Above horizon17:33 local · Sun, Sun 28 Dec · Moon 10°
Jan 2032
5
Last Quarter Moon
Below horizon22:04 local · Mon, Mon 5 Jan · Moon -23°
Jan 2032
12
New Moon
Not visible20:07 local · Mon, Mon 12 Jan · Moon -32°
Jan 2032
19
First Quarter Moon
Above horizon12:14 local · Mon, Mon 19 Jan · Moon 12°