Hermione (mythology) Hermione (mythology) In Greek mythology, Hermione (; ) was the only child of Menelaus, king of Sparta, and his wife, Helen of Troy. Prior to the Trojan War, Hermione had been betrothed by Tyndareus, her grandfather, to Orestes, son of her father's brother, Agamemnon; she was just nine years old when Paris, son of the Trojan king Priam, arrived to abduct her mother, Helen. During the war, Menelaus promised her to Achilles' son, Neoptolemus. and after the war ended, he sent Hermione away to the city of Phthia (the home of Peleus and Achilles), where Neoptolemus was staying. The two
2260 Neoptolemus observation by Robert Stephens at the Center for Solar System Studies in 2015, and 2016, gave a concurring period of 8.18 and 8.199 hours with a corresponding amplitude of 0.14 and 0.03 magnitude (). According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, "Neoptolemus" measures between 71.65 and 81.28 kilometers in diameter and its surface has an albedo between 0.051 and 0.0650. The "Collaborative Asteroid Lightcurve Link" adopts the results obtained by IRAS, that is, an albedo of 0.0650 and a diameter of