Of or pertaining to astronomy according to the techniques or axioms of astronomy
- pertaining or from the science of astronomy
- inconceivably huge
- Of or related to astronomy; relative to the methods or concepts of astronomy.
1550s, from astronomy + -ical. Desirable meaning "immense, concerning huge figures" (as sizes and distances in astronomy) is attested from 1899. Astronomical unit (acronym A.U.) "mean length from world to sunlight," made use of as a unit of way of measuring length in room, is from 1909. Relevant: Astronomically.
(a.) Of or related to astronomy; according to the techniques or axioms of astronomy.
He wrote An Astronomical Description of the late Comet (1619); Canicularia (1648); and translated Proclus' De Sphaera, and Ptolemy's De Planetarum Hypothesibus (1620).