First Quarter Moon
Saturday, 23 January 2010 · 10:54 local in London
2010-01-23 10:54 UTC · Europe/London
First Quarter Moon occurs at 10:54 local time in London on 23 January. 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
23 Jan
2010
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 (5°) 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 10:54 local · NASA LRO surface
Next moonrise
10:38
Next moonset
02:05
Next events
Calendar →Jan 2010
30
Full Moon
Above horizon06:18 local · Sat, Sat 30 Jan · Moon 11°
Feb 2010
5
Last Quarter Moon
Below horizon23:49 local · Fri, Fri 5 Feb · Moon -17°
Feb 2010
14
New Moon
Not visible02:52 local · Sun, Sun 14 Feb · Moon -38°
Feb 2010
22
First Quarter Moon
Above horizon00:43 local · Mon, Mon 22 Feb · Moon 11°