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
Amphion and Zethus Amphion and Zethus Amphion () and Zethus (, "Zēthos") were, in ancient Greek mythology, the twin sons of Zeus (or Theobus) by Antiope. They are important characters in one of the two founding myths of the city of Thebes, because they constructed the city's walls. Amphion and Zethus were the sons of Antiope, who fled in shame to Sicyon after Zeus raped her, and married King Epopeus there. However, either Nycteus or Lycus attacked Sicyon in order to carry her back to Thebes and punish her. On the way back, she gave birth to the twins and was forced to