First Quarter Moon
Monday, 21 January 2002 · 17:47 local in London
2002-01-21 17:47 UTC · Europe/London
First Quarter Moon occurs at 17:47 local time in London on 21 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
46°
At the exact phase
Illumination
50%
First Quarter
Local date
21 Jan
2002
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 (46°) 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 17:47 local · NASA LRO surface
Next moonrise
11:33
Next moonset
01:00
Next events
Calendar →Jan 2002
28
Full Moon
Above horizon22:51 local · Mon, Mon 28 Jan · Moon 55°
Feb 2002
4
Last Quarter Moon
Below horizon13:33 local · Mon, Mon 4 Feb · Moon -25°
Feb 2002
12
New Moon
Not visible07:41 local · Tue, Tue 12 Feb · Moon -2°
Feb 2002
20
First Quarter Moon
Above horizon12:02 local · Wed, Wed 20 Feb · Moon 14°