👉 Noctilucense, also known as nocturnal lucency or nocturnal light, is a term used in astronomy and physics to describe an object that appears to be illuminated by both visible light and other sources of light. This phenomenon can occur when a star (or celestial body) is far away from the observer's line-of-sight, but its position relative to us is such that it appears to move through space at a constant rate, in contrast to how stars appear to move on Earth
