Vela, the sail:

Vela is one part of the constellation formerly known as Argo Navis (along with Carina and Puppis). Argo Navis was the ship used by Jason and the Argonauts as they sought to recover the Golden Fleece. Vela represents the sail of the ship. The constellation is difficult to see from most of the United States. Only those living in the southern part of the country will be able to spot any of the stars of the constellation.