What is another word for counterglow?
Pronunciation: [kˈa͡ʊntəɡlˌə͡ʊ] (IPA) 
Counterglow is a term that refers to the luminescence produced by the earth's atmosphere during twilight. It can also be used to describe the reflection of light or other radiation from a surface back to its source. Synonyms for counterglow include afterglow, refluent light, backscatter, and radiance. Other phrases that can be used to convey similar meaning include reverse light, opposing glow, or counter-radiation. These terms are often used in the fields of physics and astronomy to describe the reflection or absorption of light that occurs when radiation encounters a surface. Whether discussing atmospheric phenomena or physical interactions, counterglow is an evocative and useful term for describing many types of phenomena.
