astronomic
Astronomic is an adjective that relates to astronomy, the science that studies celestial objects such as stars, planets, comets, and galaxies. In contemporary English, the term is relatively uncommon and is most likely to appear in formal or historical writing. It can describe things connected with the study of the cosmos, for example, astronomic observations or astronomic data, though such usage is less frequent than other terms.
In everyday language, astronomic is sometimes used to imply great size or magnitude, a sense shared with
Etymology and related terms: astronomic derives from the same root as astronomy, with the adjectival suffix