In Greek mythology, Merope (//; Greek: Μερόπη) is one of the seven Pleiades, daughters of Atlas and Pleione. Pleione, their mother, is the daughter of Oceanus and Tethys and is the protector of sailors. Their transformation into the star cluster known as the Pleiades is the subject of various myths.
In one story, the Pleiades, along with their half sisters the Hyades, were the virgin companions to Artemis. Artemis was the twin of Apollo and daughter of Leto and Zeus, and a protector of both hunters and wild animals. The Pleiades were nymphs, and along with their half sisters, were called Atlantides, Modonodes, or Nysiades and were the caretakers of the infant Bacchus.
Orion pursued the Pleiades named Maia, Electra, Taygete, Celaeno, Alcyone, Sterope, and Merope after he fell in love with their beauty and grace. Artemis asked Zeus to protect the Pleiades and in turn, Zeus turned them into stars. Artemis was angry because she no longer could see her companions and had her brother, Apollo, send a giant scorpion to chase and kill Orion. Zeus then turned Orion into a constellation to further pursue the Pleiades in the skies.
In another legend, the sisters were transformed by Zeus into stars because Orion fell in love with them and relentlessly pursued their affection for 12 years. At first they were turned into doves, but later, along with Orion, into stars so that forever the hunter Orion would pursue them.
Merope is the faintest of the stars because she was the only of the Pleiades to have married a mortal. Her sisters had relations with gods and bore them sons, but Merope married Sisyphus and lived on the island Chios. Merope gave birth to Glaukos, Ornytion, Almus, Thersander and Sinon. The star Merope is often called the "lost Pleiad" because she was at first not seen by astronomers or charted like her sisters. One myth says that she hid her face in shame because she had an affair with a mortal man, another says she went to Hades with her husband, Sisyphus.
L'etoile Perdue (The Lost Star, 1884) by William Adolphe Bouguereau depicts Merope with her sister Pleiades in the background.
The Lost Pleiade (marble sculpture, 1874/75) by Randolph Rogers depicts Merope, as inspired by the Roman author Ovid's poem Fasti which recounts the legend of the seven sister stars. It is on display in the Art Institute of Chicago.
Merope is the real name of the time traveler "Eileen O'Reilly" in the novel Blackout/All Clear by Connie Willis. It is appropriate because she marries a "contemporary" of the era to which she time-travels.
Merope Riddle is the name of Voldemort's mother in the Harry Potter series. She marries a Muggle against the wishes of her family, and produces one son, Tom Riddle, who would grow up to be Lord Voldemort.
The star Merope (and the Pleiades cluster) is involved in an ongoing alien mystery within the game Elite Dangerous; specifically the planet Merope 5c has been strangely targeted by alien Unknown Artifacts.
Merope is the sun of the planet Darqueworld in the novel Monster Stalker: A Darquepunk Novel by Elizabeth Watasin.