👉 The term "obvolvent" is a term used in the context of astronomy and astrophysics. It refers to an object that appears to be moving at a constant speed, even when it's actually stationary or has no velocity. This phenomenon is often observed in stars, asteroids, comets, and other celestial bodies. The term "obvolvent" was first used by astronomer Charles Messier in 1824. He described an object that appeared to be moving at a