Full Moon
Tuesday, 21 September 2173 · 15:38 local in London
2173-09-21 14:38 UTC · Europe/London
Full Moon occurs at 15:38 local time in London on 21 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
-29°
At the exact phase
Illumination
100%
Full Moon
Local date
21 Sep
2173
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 15:38 local · NASA LRO surface
Next moonrise
19:01
Next moonset
07:44
Next events
Calendar →Sept 2173
28
Last Quarter Moon
Above horizon22:37 local · Tue, Tue 28 Sept · Moon 3°
Oct 2173
7
New Moon
Not visible01:43 local · Thu, Thu 7 Oct · Moon -44°
Oct 2173
14
First Quarter Moon
Below horizon07:39 local · Thu, Thu 14 Oct · Moon -65°
Oct 2173
21
Full Moon
Above horizon02:18 local · Thu, Thu 21 Oct · Moon 46°