It means dark. In Greek mythology it was the name of one of the Harpy, added by the Romans. It was also called Celaeno. She was the daughter of the titan Atlas and the oceanic Pleyone. In other cases she is listed as the daughter of Electra and Taumante. She was the mother of Lychus, Nicteus, and Euphemus, whom she had with Poseidon. In astronomy it is the name of a star, which is also called 16 Tauri or HR1140. It belongs to the Constellation of Taurus and is located in the open cluster of the Pleiades. This is also why it is called the Lost Pleiade.