Aggregates of matter in outer space, such as stars, planets, and comets; their properties; and the processes they undergo.

Synonyms: Astronomic Phenomenon, Astrophysical Processes, Phenomena, Astronomic, Processes, Astronomic, Astronomical Process, Astronomic Processes, Astronomic Process, Astronomical Concept, Astrophysical Concept, Process, Astronomical, Phenomena, Astronomical, Astrophysical Concepts, Concept, Astronomical, Astronomical Phenomena, Concept, Astronomic, Phenomenon, Astronomic, Processes, Astrophysical, Astronomic Concept, Processes, Astronomical, Concepts, Astrophysical, Astrophysical Phenomenon, Astronomical Concepts, Astronomic Phenomena, Astronomic Concepts, Astronomical Processes, Astrophysical Phenomena, Concepts, Astronomic, Concepts, Astronomical, Process, Astronomic, Concept, Astrophysical, Phenomenon, Astrophysical, Phenomena, Astrophysical