First Quarter Moon
Saturday, 17 May 2138 · 02:58 local in London
2138-05-17 01:58 UTC · Europe/London
First Quarter Moon occurs at 02:58 local time in London on 17 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
-5°
At the exact phase
Illumination
50%
First Quarter
Local date
17 May
2138
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 02:58 local · NASA LRO surface
Next moonrise
12:35
Next moonset
02:34
Next events
Calendar →May 2138
24
Full Moon
Below horizon17:31 local · Sat, Sat 24 May · Moon -33°
May 2138
31
Last Quarter Moon
Above horizon11:14 local · Sat, Sat 31 May · Moon 11°
Jun 2138
7
New Moon
Not visible17:12 local · Sat, Sat 7 Jun · Moon 37°
Jun 2138
15
First Quarter Moon
Above horizon20:15 local · Sun, Sun 15 Jun · Moon 35°