Full Moon
Saturday, 21 December 1991 · 10:23 local in London
1991-12-21 10:23 UTC · Europe/London
Full Moon occurs at 10:23 local time in London on 21 December. The Moon is opposite the Sun and fully illuminated. It is easy to see all night, but surface contrast is lowest because sunlight is nearly head-on.
Moon altitude
-12°
At the exact phase
Illumination
100%
Full Moon
Local date
21 Dec
1991
Viewing tips
- No dark adaptation is needed — the Moon is bright.
- Use a moon filter if the glare is uncomfortable through a telescope.
- Look for bright ray systems such as Tycho and Copernicus.
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
Full Moon · 100% lit
Phase at 10:23 local · NASA LRO surface
Next moonrise
15:57
Next moonset
09:00
Next events
Calendar →Dec 1991
28
Last Quarter Moon
Above horizon01:55 local · Sat, Sat 28 Dec · Moon 12°
Jan 1992
4
New Moon
Not visible23:10 local · Sat, Sat 4 Jan · Moon -59°
Jan 1992
13
First Quarter Moon
Below horizon02:32 local · Mon, Mon 13 Jan · Moon -13°
Jan 1992
19
Full Moon
Above horizon21:29 local · Sun, Sun 19 Jan · Moon 44°