night-sky light

[ nahyt-skahy ]
/ ˈnaɪtˌskaɪ /

noun

the faint glow of the night sky, caused by such phenomena as airglow and zodiacal light.

Origin of night-sky light

First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019