Tonight from Boston

Tonight in Boston, United States, the sun sets at 20:25 local time and astronomical darkness — when even the faintest stars become visible — arrives at 22:38. The moon is in full phase, 97% illuminated. No major planets are above the horizon at sunset. Sunrise comes at 05:10.

At mid-latitudes, night length varies substantially with season; summer offers shorter darkness, winter the longest. 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.