Tonight from London

Tonight in London, United Kingdom, the sun sets at 20:44 local time and astronomical darkness — when even the faintest stars become visible — arrives at 23:46. The moon is in waning crescent phase, 11% illuminated. No major planets are above the horizon at sunset. Sunrise comes at 05:08.

At this latitude in summer, astronomical twilight may not end at all on the longest nights — a 'white night' that limits deep-sky observation. Polaris sits roughly at this latitude above the northern horizon, making it a permanent compass for navigation. The Big Dipper, Cassiopeia, and the northern circumpolar stars never set.