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constellation, 1667 (earlier Andromece, mid-15c.); in classical mythology the daughter of Cepheus and Cassiopeia, from Greek, literally "mindful of her husband," from andros, genitive of aner "man" (see anthropo-) + medesthai "to be mindful of, think on," related to medea (neuter plural) "counsels, plans, devices, cunning" (and source of the name Medea).
in astronomy, constellation of the northern sky at about one hour right ascension (the coordinate on the celestial sphere analogous to longitude on the Earth) and 40 north declination (angular distance north of the celestial equator), named for Andromeda of Greek legend. Its most notable feature is the great Andromeda Galaxy.