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 and the Swan foundation myth in the Canadian futuristic thriller television series "Orphan Black" which aired over 5 seasons from 2013 to 2017. A corporation uses genetic engineering to create a series of female clones (Leda) and a series of male clones (Castor) who are also brothers and sisters clones as they derive from one mother who is a chimera with male and female genomes. The award-winning show addresses issues of the modern science of genetics, corporate greed, the ethics of human cloning, human longevity and the nature of individuality. Actress Tatiana Maslany won an Emmy award for her portrayal of all Leda