First Quarter Moon
Sunday, 21 March 2173 · 10:36 local in London
2173-03-21 10:36 UTC · Europe/London
First Quarter Moon occurs at 10:36 local time in London on 21 March. 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
8°
At the exact phase
Illumination
50%
First Quarter
Local date
21 Mar
2173
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 (8°) 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 10:36 local · NASA LRO surface
Next moonrise
10:10
Next moonset
03:33
Next events
Calendar →Mar 2173
29
Full Moon
Below horizon11:51 local · Mon, Mon 29 Mar · Moon -40°
Apr 2173
5
Last Quarter Moon
Below horizon13:17 local · Mon, Mon 5 Apr · Moon -22°
Apr 2173
12
New Moon
Not visible10:53 local · Mon, Mon 12 Apr · Moon 40°
Apr 2173
20
First Quarter Moon
Below horizon07:02 local · Tue, Tue 20 Apr · Moon -14°