First Quarter Moon
Monday, 21 December 2020 · 23:41 local in London
2020-12-21 23:41 UTC · Europe/London
First Quarter Moon occurs at 23:41 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
0°
At the exact phase
Illumination
50%
First Quarter
Local date
21 Dec
2020
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 23:41 local · orientation schematic
Next moonrise
12:38
Next moonset
23:43
Next events
Calendar →Dec 2020
30
Full Moon
Above horizon03:28 local · Wed, Wed 30 Dec · Moon 42°
Jan 2021
6
Last Quarter Moon
Above horizon09:37 local · Wed, Wed 6 Jan · Moon 19°
Jan 2021
13
New Moon
Not visible05:00 local · Wed, Wed 13 Jan · Moon -30°
Jan 2021
20
First Quarter Moon
Above horizon21:02 local · Wed, Wed 20 Jan · Moon 32°