Nu Arae (ν Arae / ν Ara) is shared by two star systems in the constellation Ara: ν1 Arae ν2 Arae They are separated by 0.49° on the heavens. The stars are also sometimes referred to Upsilon AraeBode designated the star HD 154555 as Upsilon Arae (υ1 and υ2 Arae), but more generally unlettered.Note for HR 6622: Hoffleit, D., Warren, Jr., W. H., (1991). The Bright Star Catalogue, (5th Revised Ed), Centre de Donnees astronomiques de Strasbourg.Note for HR 6632: Hoffleit, D., Warren, Jr., W. H., (1991). The Bright Star Catalogue, (5th Revised Ed), Centre de Donnees astronomiques de Strasbourg.
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