Apparent

An adjective much employed by astronomers, as illustrated by the following examples: The apparent diameter of a heavenly body is the angle at the eye of the observer subtended by the body, and depends upon its actual diameter and distance. Apparent noon is the instant when the sun is on the meridian, and differs from mean noon by the equation of time. The apparent place of a star differs from its mean place in consequence of corrections for prece ion, nutation and aberration.