noun
afterglow; lingering light
Refers to the light that remains in the sky after sunset, or metaphorically to a fading remnant of something bright.
夕焼けの残光が山の端に消えていった。
The afterglow of the sunset faded behind the mountain ridge.
彼の目にはまだ希望の残光が宿っていた。
A lingering light of hope still remained in his eyes.