Castor (star) in their spectra, and all are flare stars. "α Geminorum" (Latinised to "Alpha Geminorum") is the star system's Bayer designation. Castor and Pollux are the two "heavenly twin" stars that give the constellation Gemini (meaning "twins" in Latin) its name. The name "Castor" refers specifically to Castor, one of the twin sons of Zeus and Leda in Greek and Roman mythology. The star was annotated by the Arabic description "Al-Ras al-Taum al-Muqadim", which translates as "the head of the foremost twin." In the catalogue of stars in the "Calendarium of Al Achsasi Al Mouakket", this star was designated "Aoul al
Leda (mythology) Leda (mythology) In Greek mythology, Leda (; Ancient Greek: Λήδα ) was an Aetolian princess who became a Spartan queen. Her myth gave rise to the popular motif in Renaissance and later art of Leda and the Swan. Leda was the daughter of the Aetolian king Thestius hence she was also called Thestias. Her mother was either Leucippe or Deidameia, daughter of Perieres, or else Eurythemis, daughter of Cleoboea, or Laophonte, daughter of Pleuron. According to Alcman, Leda's parents were Glaucus and Laophonte while Eumelus attested that they are Sisyphus and Panteiduia or Paneidyia She married king Tyndareus of Sparta