First Quarter Moon
Friday, 17 September 1999 · 21:06 local in London
1999-09-17 20:06 UTC · Europe/London
First Quarter Moon occurs at 21:06 local time in London on 17 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
12°
At the exact phase
Illumination
50%
First Quarter
Local date
17 Sep
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
Above the horizon (12°) 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 21:06 local · NASA LRO surface
Next moonrise
15:17
Next moonset
23:08
Next events
Calendar →Sept 1999
25
Full Moon
Below horizon11:51 local · Sat, Sat 25 Sept · Moon -40°
Oct 1999
2
Last Quarter Moon
Above horizon05:02 local · Sat, Sat 2 Oct · Moon 51°
Oct 1999
9
New Moon
Not visible12:35 local · Sat, Sat 9 Oct · Moon 36°
Oct 1999
17
First Quarter Moon
Above horizon16:00 local · Sun, Sun 17 Oct · Moon 8°