First Quarter Moon
Sunday, 15 September 1991 · 23:02 local in London
1991-09-15 22:02 UTC · Europe/London
First Quarter Moon occurs at 23:02 local time in London on 15 September. 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
15 Sep
1991
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 23:02 local · NASA LRO surface
Next moonrise
15:47
Next moonset
23:19
Next events
Calendar →Sept 1991
23
Full Moon
Above horizon23:40 local · Mon, Mon 23 Sept · Moon 41°
Oct 1991
1
Last Quarter Moon
Above horizon01:30 local · Tue, Tue 1 Oct · Moon 23°
Oct 1991
7
New Moon
Not visible22:39 local · Mon, Mon 7 Oct · Moon -42°
Oct 1991
15
First Quarter Moon
Above horizon18:33 local · Tue, Tue 15 Oct · Moon 17°