Octans

noun
Oc·tans | \ˈäk-ˌtanz \

Definition of Octans 

astronomy

: a constellation that is visible at the south celestial pole and that is represented by the figure of a navigational octant Octans the Octant, where the south celestial pole sits, is so faint it's not there.— Bob Berman, Astronomy, May 1998

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First Known Use of Octans

1801, in the meaning defined above

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Time Traveler for Octans

The first known use of Octans was in 1801

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