Piscis Austrinus

noun

Pi·​scis Au·​stri·​nus ˈpī-səs-ȯ-ˈstrī-nəs 

astronomy

: a southern constellation that is visible south of the constellation Aquarius and that is represented by the figure of a fish

Start by aiming your finder scope toward the 3rd-magnitude star Delta Aquarii. Extend a line south to Fomalhaut, the 1st-magnitude star in the constellation Piscis Austrinus …

—David Higgins, Astronomy, October 1991

Word History

First Known Use

1639, in the meaning defined above

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