Full Moon
Monday, 23 September 1991 · 23:40 local in London
1991-09-23 22:40 UTC · Europe/London
Full Moon occurs at 23:40 local time in London on 23 September. 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
41°
At the exact phase
Illumination
100%
Full Moon
Local date
23 Sep
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
Above the horizon (41°) 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
Full Moon · 100% lit
Phase at 23:40 local · NASA LRO surface
Next moonrise
18:35
Next moonset
07:31
Next events
Calendar →Oct 1991
1
Last Quarter Moon
Above horizon01:30 local · Tue, Tue 1 Oct · Moon 23°
Oct 1991
7
New Moon
Not visible22:39 local · Mon, Mon 7 Oct · Moon -42°
Oct 1991
15
First Quarter Moon
Above horizon18:33 local · Tue, Tue 15 Oct · Moon 17°
Oct 1991
23
Full Moon
Below horizon12:08 local · Wed, Wed 23 Oct · Moon -23°