[Verginius Rufus]

Carina is part of the wreckage of the Argo. Originally there was one huge constellation Argo, which was later broken up. Carina is Latin for "keel"--it is the keel section of Argo.

The brightest stars were designated by letters of the Greek alphabet, in order of apparent brightness. (Sometimes they got it wrong--Beta Orionis is brighter than Alpha Orionis, for example.) The designations were made before Argo broke up, so Eta Carinae was perceived to be the seventh-brightest star in all of Argo, not the seventh-brightest star in Carina.

[Red Badger]

The designations were made before Argo broke up...

Did it sink?...................