First Quarter Moon
Saturday, 18 August 2170 · 23:21 local in London
2170-08-18 22:21 UTC · Europe/London
First Quarter Moon occurs at 23:21 local time in London on 18 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
-2°
At the exact phase
Illumination
50%
First Quarter
Local date
18 Aug
2170
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 23:21 local · NASA LRO surface
Next moonrise
15:18
Next moonset
23:34
Next events
Calendar →Aug 2170
26
Full Moon
Below horizon13:53 local · Sun, Sun 26 Aug · Moon -53°
Sept 2170
3
Last Quarter Moon
Below horizon18:01 local · Mon, Mon 3 Sept · Moon -15°
Sept 2170
10
New Moon
Not visible16:23 local · Mon, Mon 10 Sept · Moon 31°
Sept 2170
17
First Quarter Moon
Below horizon08:02 local · Mon, Mon 17 Sept · Moon -61°