The “Dioscuri”, two heroes of Greek and Roman mythology. Their figures were probably painted or sculptured on the prow of the ship which Luke refers to (Acts 28:11). They were regarded as the tutelary divinities of sailors. They appeared in the heavens as the constellation Gemini.

(Acts 28:11) the twin sons of Jupiter and Leda, were regarded as the tutelary divinities of sailors; hence their image was often used as a figure-head for ships. They appeared in heaven as the constellation Gemini . In art they were sometimes represented simply as stars hovering over a ship.