Manut saking  definisi kamus sané ketat, "astronomi" nganutin ring "studi indik benda miwah materi ring luar atmosfer jagaté saha sifat fisik miwah kimianyané, "raris yéning "astrofisika" nganutin ring pahan astronomi sané mapaiketan sareng "parilaksana, sifat fisik, miwah proses dinamis benda ring langit miwah fenomenanyané".
Based on strict dictionary definitions, "astronomy" refers to "the study of objects and matter outside the Earth's atmosphere and of their physical and chemical properties," while "astrophysics" refers to the branch of astronomy dealing with "the behavior, physical properties, and dynamic processes of celestial objects and phenomena".