Alcyone, in Greek mythology, was the name of one of the Pleiades, daughters of Atlas and Pleione or, more rarely, Aethra. She attracted the attention of the god Poseidon and bore him several children, variously named in the sources: Hyrieus, Hyperenor, and Aethusa; Hyperes and Anthas; and Epopeus. By a mortal, Anthedon, Alcyone became the mother of the fisherman Glaucus, who was later transformed into a marine god.
The Pleiades
Pleiades (Greek mythology)
The Pleiades, were the seven sister-nymphs, companions of Artemis, the goddess of the hunt. Together with their sisters, the Hyades, they were called the Atlantides, Dodonides, or Nysiades, nursemaids and teachers of the infant Dionysus. The Pleiades were thought to have been translated to the night sky as a cluster of stars, the Pleiades, and were associated with rain.
The Pleiades by Elihu Vedder
Lost Pleiad (1884) by William-Adolphe Bouguereau.