A glow, brightness, or reflection that continues or appears after the source of light has diminished or passed.
From Old English 'æfter' (after) + 'shine' (from Germanic roots). A poetic term used in literary descriptions of fading light.
The 'aftershine' of sunset—that lingering glow that stays in the sky even after the sun dips below the horizon—exists because light travels through the atmosphere and bounces around, a phenomenon sailors used to navigate before compasses.
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