First Quarter Moon
Wednesday, 20 April 1983 · 09:58 local in London
1983-04-20 08:58 UTC · Europe/London
First Quarter Moon occurs at 09:58 local time in London on 20 April. 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
20 Apr
1983
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 09:58 local · NASA LRO surface
Next moonrise
11:15
Next moonset
03:55
Next events
Calendar →Apr 1983
27
Full Moon
Below horizon07:31 local · Wed, Wed 27 Apr · Moon -12°
May 1983
5
Last Quarter Moon
Above horizon04:43 local · Thu, Thu 5 May · Moon 10°
May 1983
12
New Moon
Not visible20:25 local · Thu, Thu 12 May · Moon -1°
May 1983
19
First Quarter Moon
Above horizon15:17 local · Thu, Thu 19 May · Moon 30°