First Quarter Moon
Wednesday, 23 May 2170 · 08:19 local in London
2170-05-23 07:19 UTC · Europe/London
First Quarter Moon occurs at 08:19 local time in London on 23 May. 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
-22°
At the exact phase
Illumination
50%
First Quarter
Local date
23 May
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 08:19 local · NASA LRO surface
Next moonrise
12:13
Next moonset
02:57
Next events
Calendar →May 2170
30
Full Moon
Above horizon01:49 local · Wed, Wed 30 May · Moon 15°
Jun 2170
6
Last Quarter Moon
Below horizon16:22 local · Wed, Wed 6 Jun · Moon -36°
Jun 2170
14
New Moon
Not visible14:24 local · Thu, Thu 14 Jun · Moon 58°
Jun 2170
21
First Quarter Moon
Above horizon12:53 local · Thu, Thu 21 Jun · Moon 0°