First Quarter Moon
Tuesday, 23 February 1999 · 02:43 local in London
1999-02-23 02:43 UTC · Europe/London
First Quarter Moon occurs at 02:43 local time in London on 23 February. 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
-10°
At the exact phase
Illumination
50%
First Quarter
Local date
23 Feb
1999
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 02:43 local · NASA LRO surface
Next moonrise
10:52
Next moonset
02:32