First Quarter Moon
Thursday, 21 August 1958 · 20:45 local in London
1958-08-21 19:45 UTC · Europe/London
First Quarter Moon occurs at 20:45 local time in London on 21 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
16°
At the exact phase
Illumination
50%
First Quarter
Local date
21 Aug
1958
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 (16°) 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 20:45 local · NASA LRO surface
Next moonrise
15:08
Next moonset
23:22
Next events
Calendar →Aug 1958
29
Full Moon
Below horizon06:54 local · Fri, Fri 29 Aug · Moon -5°
Sept 1958
6
Last Quarter Moon
Above horizon11:24 local · Sat, Sat 6 Sept · Moon 27°
Sept 1958
13
New Moon
Not visible13:02 local · Sat, Sat 13 Sept · Moon 39°
Sept 1958
20
First Quarter Moon
Below horizon04:18 local · Sat, Sat 20 Sept · Moon -46°